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design language·indigo

Indigo

A portable design language for agents: download the markdown first, then inspect the preview, tokens, and rules as needed.

Download DESIGN.md

Portable DESIGN.md source of truth for most agents and apps.

the spec

specification

philosophy
summary
Indigo is a wet-pigment material system: colour is treated as a material in motion on saturated dark paper. Every interface state is a bleed front advancing from an edge, and every value is grain settling into a well. Where most watercolor systems lay calm washes over bright white, Indigo takes the opposite moment — the instant a charged brush meets damp paper and the pigment travels — so colour glows out of a deep wet-paper ground rather than sitting on top of white. It is built for colour-batch and pigment-QA tools, dye-floor consoles, and creative-workflow products that need to catch a problem while the dye is still moving.
values
Pigment in motionSaturated groundGrain as dataOne charge per surfaceReserved ink
anti-values
×No white-paper watercolor or pastel washes; Indigo's ground is saturated dark and the pigment is the highlight.×No accent edge-stripes on cards and no nested cards; structure is built with space, surface, and the bleed-front.×No scattered splatter; more than one charge per surface reads as messy.×No serif display, no default browser controls, no symbol glyphs in copy.
tokens
colors21 items
bg
#0C1020
surface
#141A30
surface_2
#1B2240
text
#EAF0FF
muted
#93A0C4
border
#293252
accent
#36D6C6
on_accent
#06151A
accent_2
#E0533F
accent_3
#E8B23C
primary
#36D6C6
secondary
#1B2240
success
#52C28A
warning
#E8B23C
error
#E0533F
info
#36D6C6
pigment_teal
#36D6C6
pigment_madder
#E0533F
pigment_gold
#E8B23C
pigment_indigo
#5A6FB0
fiber
#293252
typography10 items
base size
17px
body font
Archivo
heading font
Archivo Expanded
mono font
JetBrains Mono
heading weight
800
heading transform
uppercase
letter spacing
-0.01em
scale ratio
1.25
line height
1.6
google fonts url
https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800;900&family=Archivo+Expanded:wght@600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap
radii5 items
none
0px
sm
16px
md
16px
lg
24px
full
9999px
shadows3 items
sm
0 1px 0 rgba(255,255,255,0.04) inset, 0 12px 30px rgba(4,8,20,0.45)
md
0 1px 0 rgba(255,255,255,0.05) inset, 0 24px 60px rgba(4,8,20,0.55)
lg
0 2px 0 rgba(255,255,255,0.06) inset, 0 36px 90px rgba(4,8,20,0.65)
spacing2 items
base
8px
scale
4px, 8px, 12px, 16px, 24px, 32px, 48px, 64px, 96px
surfaces3 items
treatment
wet-paper
card style
Dark damp surfaces carrying a masked feathered bleed-front rising from one edge; faint fibre grain across the whole panel; one charged madder drop for emphasis.
bg pattern
fiber-grain
borders4 items
default width
1px
accent width
2px
style
solid
character
Hairline fibre rules and inset rings on dark; no accent edge-stripes — selection is carried by the bleed-front, not a border.
motion3 items
duration
520ms
easing
cubic-bezier(0.2,0.85,0.25,1)
philosophy
Snappy but absorbent: fronts advance, then settle. The fully rendered settled state is the default with no JavaScript; reveal motion layers on top and respects prefers-reduced-motion.
rules
composition
An asymmetric, channel-driven layout on a deep wet-paper indigo ground: a vertical pigment-channel rail beside offset content on the landing; an open masthead sidebar plus a single canvas on the dashboard — not a three-column workspace. Cards carry a bleed-front from one edge; ink linework and mono metadata stay reserved and crisp.
hierarchy
Archivo Expanded uppercase carries display; Archivo carries body; JetBrains Mono carries every numeric reading and label. Priority is signalled by where the bleed-front advances and how dense the granulation is, not by many colours.
density
Medium editorial density with generous breathing room; the pigment fronts need space, so avoid edge-to-edge packed cards. Every group keeps at least 24px internal padding.
signature
Every state is a bleed front — a masked feathered pigment frontier rising from an edge at 0.08–0.22 opacity. Values are granulation wells (grain density settling to a base); emphasis is one madder charged-drop; selection is the wet front advancing across a control, never a dashed stroke or an edge-stripe.
layout
grid
Desktop caps contained content at ~1280px with 32px gutters. The landing runs a 96px vertical pigment-channel rail beside offset content; the dashboard is a 248px open masthead sidebar plus a single fluid canvas. Tablet collapses the rail to a horizontal bar and stacks panels.
whitespace
Whitespace is the dry, unpigmented ground: content is framed by open dark margins while bleed-fronts sit behind content as masked zones rather than filled blocks.
density

Medium editorial density: spacious presentation areas with compact, legible mono operational data.

responsive
Every artifact renders well from ~390px mobile to 2560px+ ultra-wide; minmax(0,1fr) columns and min-width:0 children keep grids from blowing out. Only the full-bleed hero spans 100vw; contained content caps and centres.
breakpoints
mobile
390px
phone
560px
tablet
760px
tablet lg
1024px
desktop
1280px
ultrawide
2560px
guidance
do
  • Build colour from masked, feathered bleed-fronts at 0.08–0.22 opacity rising from one edge of a surface.
  • Encode values as granulation density in a well and let the eye weigh them under a JetBrains Mono number.
  • Reserve exactly one charged madder drop per surface for emphasis.
  • Keep ink linework and mono metadata crisp; mask pigment away from text for AA contrast on the dark ground.
  • Style every form control explicitly; keep radii on the 16/24/9999 scale and the masthead open.
  • Render the settled state with no JavaScript; layer reveal motion on top behind a class the script removes.
avoid
  • Do not lay the system on white paper or use pastel washes; the ground is saturated dark.
  • Do not give a card an accent or highlight edge-stripe, and do not nest cards.
  • Do not scatter splatter; more than one charge per surface reads as messy.
  • Do not box the nav in a floating pill bar; let the masthead sit open across the header.
  • Do not use serif display, default select/checkbox/radio/button styling, or symbol glyphs in copy.
imagery
pairs with

lavis

summary
Subjects rendered in layered transparent watercolor glazing on a deep wet ground: translucent granulated mineral-pigment washes bleeding and blooming upward as a feathered capillary front, crisp dry-brush edges and fine black ink contour lines, with one restrained gold splatter cluster. Indigo, prussian-blue and teal carry the field; a single madder streak marks emphasis.
subjects
koi and carp in dark waterink-and-wash river currentscharged pigment drops hitting wet papernight estuaries and tidal bloomsbrand pigment plates
usage
Full-bleed luminous hero with the colour bleeding up from a deeper lower edge so low-anchored copy stays legible; feature and avatar shots are single centred subjects filling the frame. No text, letters, or logos in the image.
element count

26

composition count

2

katagami spec
# Indigo

## Philosophy

Indigo is a wet-pigment material system: colour is treated as a material in motion on saturated dark paper. Every interface state is a bleed front advancing from an edge, and every value is grain settling into a well. Where most watercolor systems lay calm washes over bright white, Indigo takes the opposite moment — the instant a charged brush meets damp paper and the pigment travels — so colour glows out of a deep wet-paper ground rather than sitting on top of white. It is built for colour-batch and pigment-QA tools, dye-floor consoles, and creative-workflow products that need to catch a problem while the dye is still moving.

### Values

- {"name":"Pigment in motion","explanation":"State is a bleed front advancing across a surface, not a box that recolours — colour reads as wet pigment travelling, the way it does on damp paper."}
- {"name":"Saturated ground","explanation":"The page is deep wet-paper indigo, not white; pigment is luminous against the dark, which is the language's primary identity lever."}
- {"name":"Grain as data","explanation":"Values are encoded as the density of granulated pigment settled toward a base, so a glance weighs a batch before any number is read."}
- {"name":"One charge per surface","explanation":"Emphasis is a single deliberate madder drop — a charged event, never scattered splatter across a panel."}
- {"name":"Reserved ink","explanation":"Fine linework and mono metadata stay crisp; pigment is masked away from text it must not obscure, so the dark ground never costs legibility."}

### Anti-Values

- No white-paper watercolor or pastel washes; Indigo's ground is saturated dark and the pigment is the highlight.
- No accent edge-stripes on cards and no nested cards; structure is built with space, surface, and the bleed-front.
- No scattered splatter; more than one charge per surface reads as messy.
- No serif display, no default browser controls, no symbol glyphs in copy.

### Visual Character

- Deep wet-paper indigo ground (#0C1020) with a faint fibre grain across every surface, pigment glowing out of the dark.
- Masked, feathered bleed-fronts rise from one edge of cards, nav items, alerts, and selected table rows to signal state.
- Granulation wells encode values as pigment-grain density settling toward a base under a mono number.
- A single madder charged-drop marks the primary action; one restrained gold splatter cluster marks a charge confirmation.
- Wide Archivo Expanded uppercase mastheads over Archivo body and JetBrains Mono numerics — no serif, no italic.

## Tokens

### Colors

| Name | Value |
|------|-------|
| bg | `#0C1020` |
| surface | `#141A30` |
| surface_2 | `#1B2240` |
| text | `#EAF0FF` |
| muted | `#93A0C4` |
| border | `#293252` |
| accent | `#36D6C6` |
| on_accent | `#06151A` |
| accent_2 | `#E0533F` |
| accent_3 | `#E8B23C` |
| primary | `#36D6C6` |
| secondary | `#1B2240` |
| success | `#52C28A` |
| warning | `#E8B23C` |
| error | `#E0533F` |
| info | `#36D6C6` |
| pigment_teal | `#36D6C6` |
| pigment_madder | `#E0533F` |
| pigment_gold | `#E8B23C` |
| pigment_indigo | `#5A6FB0` |
| fiber | `#293252` |

### Typography

- **Base Size**: 17px
- **Body Font**: Archivo
- **Heading Font**: Archivo Expanded
- **Mono Font**: JetBrains Mono
- **Heading Weight**: 800
- **Heading Transform**: uppercase
- **Letter Spacing**: -0.01em
- **Scale Ratio**: 1.25
- **Line Height**: 1.6
- **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800;900&family=Archivo+Expanded:wght@600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap

### Radii

- **None**: 0px
- **Sm**: 16px
- **Md**: 16px
- **Lg**: 24px
- **Full**: 9999px

### Shadows

- **Sm**: 0 1px 0 rgba(255,255,255,0.04) inset, 0 12px 30px rgba(4,8,20,0.45)
- **Md**: 0 1px 0 rgba(255,255,255,0.05) inset, 0 24px 60px rgba(4,8,20,0.55)
- **Lg**: 0 2px 0 rgba(255,255,255,0.06) inset, 0 36px 90px rgba(4,8,20,0.65)

### Spacing

- **Base**: 8px
- **Scale**: ["4px","8px","12px","16px","24px","32px","48px","64px","96px"]

### Surfaces

- **Treatment**: wet-paper
- **Card Style**: Dark damp surfaces carrying a masked feathered bleed-front rising from one edge; faint fibre grain across the whole panel; one charged madder drop for emphasis.
- **Bg Pattern**: fiber-grain

### Borders

- **Default Width**: 1px
- **Accent Width**: 2px
- **Style**: solid
- **Character**: Hairline fibre rules and inset rings on dark; no accent edge-stripes — selection is carried by the bleed-front, not a border.

### Motion

- **Duration**: 520ms
- **Easing**: cubic-bezier(0.2,0.85,0.25,1)
- **Philosophy**: Snappy but absorbent: fronts advance, then settle. The fully rendered settled state is the default with no JavaScript; reveal motion layers on top and respects prefers-reduced-motion.

## Rules

### Composition

An asymmetric, channel-driven layout on a deep wet-paper indigo ground: a vertical pigment-channel rail beside offset content on the landing; an open masthead sidebar plus a single canvas on the dashboard — not a three-column workspace. Cards carry a bleed-front from one edge; ink linework and mono metadata stay reserved and crisp.

### Hierarchy

Archivo Expanded uppercase carries display; Archivo carries body; JetBrains Mono carries every numeric reading and label. Priority is signalled by where the bleed-front advances and how dense the granulation is, not by many colours.

### Density

Medium editorial density with generous breathing room; the pigment fronts need space, so avoid edge-to-edge packed cards. Every group keeps at least 24px internal padding.

### Signature

Every state is a bleed front — a masked feathered pigment frontier rising from an edge at 0.08–0.22 opacity. Values are granulation wells (grain density settling to a base); emphasis is one madder charged-drop; selection is the wet front advancing across a control, never a dashed stroke or an edge-stripe.

## Layout

### Grid

Desktop caps contained content at ~1280px with 32px gutters. The landing runs a 96px vertical pigment-channel rail beside offset content; the dashboard is a 248px open masthead sidebar plus a single fluid canvas. Tablet collapses the rail to a horizontal bar and stacks panels.

### Whitespace

Whitespace is the dry, unpigmented ground: content is framed by open dark margins while bleed-fronts sit behind content as masked zones rather than filled blocks.

### Density

Medium editorial density: spacious presentation areas with compact, legible mono operational data.

### Responsive

Every artifact renders well from ~390px mobile to 2560px+ ultra-wide; minmax(0,1fr) columns and min-width:0 children keep grids from blowing out. Only the full-bleed hero spans 100vw; contained content caps and centres.

### Breakpoints

- **Mobile**: 390px
- **Phone**: 560px
- **Tablet**: 760px
- **Tablet Lg**: 1024px
- **Desktop**: 1280px
- **Ultrawide**: 2560px

## Guidance

### Do

- Build colour from masked, feathered bleed-fronts at 0.08–0.22 opacity rising from one edge of a surface.
- Encode values as granulation density in a well and let the eye weigh them under a JetBrains Mono number.
- Reserve exactly one charged madder drop per surface for emphasis.
- Keep ink linework and mono metadata crisp; mask pigment away from text for AA contrast on the dark ground.
- Style every form control explicitly; keep radii on the 16/24/9999 scale and the masthead open.
- Render the settled state with no JavaScript; layer reveal motion on top behind a class the script removes.

### Don't

- Do not lay the system on white paper or use pastel washes; the ground is saturated dark.
- Do not give a card an accent or highlight edge-stripe, and do not nest cards.
- Do not scatter splatter; more than one charge per surface reads as messy.
- Do not box the nav in a floating pill bar; let the masthead sit open across the header.
- Do not use serif display, default select/checkbox/radio/button styling, or symbol glyphs in copy.

### Accessibility

Maintain WCAG AA by keeping text on the dark ground or near-white ink, never on dense pigment. Focus states use a teal ring plus a soft teal wash halo. Touch targets are at least 44px; disabled states reduce opacity while preserving labels; motion is short with no parallax or flashing and respects prefers-reduced-motion.

## Imagery Direction

### Pairs With

lavis

### Summary

Subjects rendered in layered transparent watercolor glazing on a deep wet ground: translucent granulated mineral-pigment washes bleeding and blooming upward as a feathered capillary front, crisp dry-brush edges and fine black ink contour lines, with one restrained gold splatter cluster. Indigo, prussian-blue and teal carry the field; a single madder streak marks emphasis.

### Subjects

- koi and carp in dark water
- ink-and-wash river currents
- charged pigment drops hitting wet paper
- night estuaries and tidal blooms
- brand pigment plates

### Usage

Full-bleed luminous hero with the colour bleeding up from a deeper lower edge so low-anchored copy stays legible; feature and avatar shots are single centred subjects filling the frame. No text, letters, or logos in the image.

### Element Count

26

### Composition Count

2
DESIGN.md
---
version: "alpha"
name: "Indigo"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
  bg: "#0C1020"
  surface: "#141A30"
  surface_2: "#1B2240"
  text: "#EAF0FF"
  muted: "#93A0C4"
  border: "#293252"
  accent: "#36D6C6"
  on_accent: "#06151A"
  accent_2: "#E0533F"
  accent_3: "#E8B23C"
  primary: "#36D6C6"
  secondary: "#1B2240"
  success: "#52C28A"
  warning: "#E8B23C"
  error: "#E0533F"
  info: "#36D6C6"
  pigment_teal: "#36D6C6"
  pigment_madder: "#E0533F"
  pigment_gold: "#E8B23C"
  pigment_indigo: "#5A6FB0"
  fiber: "#293252"
typography:
  headline-lg:
    fontFamily: "Archivo Expanded"
    fontSize: "2.075rem"
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.01em"
  headline-md:
    fontFamily: "Archivo Expanded"
    fontSize: "1.66rem"
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: "-0.01em"
  body-md:
    fontFamily: "Archivo"
    fontSize: "17px"
    fontWeight: 400
    lineHeight: 1.6
    letterSpacing: "-0.01em"
  label-md:
    fontFamily: "JetBrains Mono"
    fontSize: "0.75rem"
    fontWeight: 600
    lineHeight: 1
    letterSpacing: "0.08em"
rounded:
  none: "0px"
  sm: "16px"
  md: "16px"
  lg: "24px"
  full: "9999px"
spacing:
  base: "8px"
  xs: "4px"
  sm: "8px"
  md: "12px"
  lg: "16px"
  xl: "24px"
  2xl: "32px"
  3xl: "48px"
  4xl: "64px"
  step-8: "96px"
components:
  color-reference-bg:
    backgroundColor: "{colors.bg}"
  color-reference-surface:
    backgroundColor: "{colors.surface}"
  color-reference-surface_2:
    backgroundColor: "{colors.surface_2}"
  color-reference-text:
    backgroundColor: "{colors.text}"
  color-reference-muted:
    backgroundColor: "{colors.muted}"
  color-reference-border:
    backgroundColor: "{colors.border}"
  color-reference-accent:
    backgroundColor: "{colors.accent}"
  color-reference-on_accent:
    backgroundColor: "{colors.on_accent}"
  color-reference-accent_2:
    backgroundColor: "{colors.accent_2}"
  color-reference-accent_3:
    backgroundColor: "{colors.accent_3}"
  color-reference-primary:
    backgroundColor: "{colors.primary}"
  color-reference-secondary:
    backgroundColor: "{colors.secondary}"
  color-reference-success:
    backgroundColor: "{colors.success}"
  color-reference-warning:
    backgroundColor: "{colors.warning}"
  color-reference-error:
    backgroundColor: "{colors.error}"
  color-reference-info:
    backgroundColor: "{colors.info}"
  color-reference-pigment_teal:
    backgroundColor: "{colors.pigment_teal}"
  color-reference-pigment_madder:
    backgroundColor: "{colors.pigment_madder}"
  color-reference-pigment_gold:
    backgroundColor: "{colors.pigment_gold}"
  color-reference-pigment_indigo:
    backgroundColor: "{colors.pigment_indigo}"
  color-reference-fiber:
    backgroundColor: "{colors.fiber}"
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "#000000"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: "{spacing.md}"
  card-surface:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.md}"
    padding: "{spacing.md}"
  input-default:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.md}"
    height: "44px"
---

# Indigo

## Overview

Indigo is a wet-pigment material system: colour is treated as a material in motion on saturated dark paper. Every interface state is a bleed front advancing from an edge, and every value is grain settling into a well. Where most watercolor systems lay calm washes over bright white, Indigo takes the opposite moment — the instant a charged brush meets damp paper and the pigment travels — so colour glows out of a deep wet-paper ground rather than sitting on top of white. It is built for colour-batch and pigment-QA tools, dye-floor consoles, and creative-workflow products that need to catch a problem while the dye is still moving.

### Values

- {"name":"Pigment in motion","explanation":"State is a bleed front advancing across a surface, not a box that recolours — colour reads as wet pigment travelling, the way it does on damp paper."}
- {"name":"Saturated ground","explanation":"The page is deep wet-paper indigo, not white; pigment is luminous against the dark, which is the language's primary identity lever."}
- {"name":"Grain as data","explanation":"Values are encoded as the density of granulated pigment settled toward a base, so a glance weighs a batch before any number is read."}
- {"name":"One charge per surface","explanation":"Emphasis is a single deliberate madder drop — a charged event, never scattered splatter across a panel."}
- {"name":"Reserved ink","explanation":"Fine linework and mono metadata stay crisp; pigment is masked away from text it must not obscure, so the dark ground never costs legibility."}

### Anti-Values

- No white-paper watercolor or pastel washes; Indigo's ground is saturated dark and the pigment is the highlight.
- No accent edge-stripes on cards and no nested cards; structure is built with space, surface, and the bleed-front.
- No scattered splatter; more than one charge per surface reads as messy.
- No serif display, no default browser controls, no symbol glyphs in copy.

### Visual Character

- Deep wet-paper indigo ground (#0C1020) with a faint fibre grain across every surface, pigment glowing out of the dark.
- Masked, feathered bleed-fronts rise from one edge of cards, nav items, alerts, and selected table rows to signal state.
- Granulation wells encode values as pigment-grain density settling toward a base under a mono number.
- A single madder charged-drop marks the primary action; one restrained gold splatter cluster marks a charge confirmation.
- Wide Archivo Expanded uppercase mastheads over Archivo body and JetBrains Mono numerics — no serif, no italic.

## Colors

Use the YAML color tokens as the normative palette. The prose below names the roles agents should preserve when generating UI.

| Token | Value |
|-------|-------|
| bg | `#0C1020` |
| surface | `#141A30` |
| surface_2 | `#1B2240` |
| text | `#EAF0FF` |
| muted | `#93A0C4` |
| border | `#293252` |
| accent | `#36D6C6` |
| on_accent | `#06151A` |
| accent_2 | `#E0533F` |
| accent_3 | `#E8B23C` |
| primary | `#36D6C6` |
| secondary | `#1B2240` |
| success | `#52C28A` |
| warning | `#E8B23C` |
| error | `#E0533F` |
| info | `#36D6C6` |
| pigment_teal | `#36D6C6` |
| pigment_madder | `#E0533F` |
| pigment_gold | `#E8B23C` |
| pigment_indigo | `#5A6FB0` |
| fiber | `#293252` |

## Typography

- **Headline-Lg**: Archivo Expanded, 2.075rem, weight 700, line-height 1.1.
- **Headline-Md**: Archivo Expanded, 1.66rem, weight 600, line-height 1.15.
- **Body-Md**: Archivo, 17px, weight 400, line-height 1.6.
- **Label-Md**: JetBrains Mono, 0.75rem, weight 600, line-height 1.

## Layout

### Spacing Tokens

- **Base**: `8px`
- **Xs**: `4px`
- **Sm**: `8px`
- **Md**: `12px`
- **Lg**: `16px`
- **Xl**: `24px`
- **2xl**: `32px`
- **3xl**: `48px`
- **4xl**: `64px`
- **Step-8**: `96px`

### Grid

Desktop caps contained content at ~1280px with 32px gutters. The landing runs a 96px vertical pigment-channel rail beside offset content; the dashboard is a 248px open masthead sidebar plus a single fluid canvas. Tablet collapses the rail to a horizontal bar and stacks panels.

### Whitespace

Whitespace is the dry, unpigmented ground: content is framed by open dark margins while bleed-fronts sit behind content as masked zones rather than filled blocks.

### Density

Medium editorial density: spacious presentation areas with compact, legible mono operational data.

### Responsive

Every artifact renders well from ~390px mobile to 2560px+ ultra-wide; minmax(0,1fr) columns and min-width:0 children keep grids from blowing out. Only the full-bleed hero spans 100vw; contained content caps and centres.

### Breakpoints

- **Mobile**: 390px
- **Phone**: 560px
- **Tablet**: 760px
- **Tablet Lg**: 1024px
- **Desktop**: 1280px
- **Ultrawide**: 2560px

## Elevation & Depth

### Shadows

- **Sm**: 0 1px 0 rgba(255,255,255,0.04) inset, 0 12px 30px rgba(4,8,20,0.45)
- **Md**: 0 1px 0 rgba(255,255,255,0.05) inset, 0 24px 60px rgba(4,8,20,0.55)
- **Lg**: 0 2px 0 rgba(255,255,255,0.06) inset, 0 36px 90px rgba(4,8,20,0.65)

## Shapes

### Rounded

- **None**: `0px`
- **Sm**: `16px`
- **Md**: `16px`
- **Lg**: `24px`
- **Full**: `9999px`

### Surfaces

- **Treatment**: wet-paper
- **Card Style**: Dark damp surfaces carrying a masked feathered bleed-front rising from one edge; faint fibre grain across the whole panel; one charged madder drop for emphasis.
- **Bg Pattern**: fiber-grain

### Borders

- **Default Width**: 1px
- **Accent Width**: 2px
- **Style**: solid
- **Character**: Hairline fibre rules and inset rings on dark; no accent edge-stripes — selection is carried by the bleed-front, not a border.

## Components

### Composition

An asymmetric, channel-driven layout on a deep wet-paper indigo ground: a vertical pigment-channel rail beside offset content on the landing; an open masthead sidebar plus a single canvas on the dashboard — not a three-column workspace. Cards carry a bleed-front from one edge; ink linework and mono metadata stay reserved and crisp.

### Hierarchy

Archivo Expanded uppercase carries display; Archivo carries body; JetBrains Mono carries every numeric reading and label. Priority is signalled by where the bleed-front advances and how dense the granulation is, not by many colours.

### Density

Medium editorial density with generous breathing room; the pigment fronts need space, so avoid edge-to-edge packed cards. Every group keeps at least 24px internal padding.

### Signature

Every state is a bleed front — a masked feathered pigment frontier rising from an edge at 0.08–0.22 opacity. Values are granulation wells (grain density settling to a base); emphasis is one madder charged-drop; selection is the wet front advancing across a control, never a dashed stroke or an edge-stripe.

## shadcn/ui Usage

When the target app uses shadcn/ui, copy DESIGN.md with shadcn instead of the plain DESIGN.md. It contains the same Katagami design-language source plus the shadcn/ui primitives, imports, theme variables, component recipes, and preview-shot guidance.

DESIGN.md with shadcn: `/language/en-019ef897-271a-7750-a228-ff027784b0dd/DESIGN.with-shadcn.md`.

The shadcn page also exposes optional machine-readable files for automation, but the human-facing handoff is DESIGN.md with shadcn.

Install recommended primitives with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.

Use these primitives in shadcn apps:
- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table

Implementation rule for agents: import shadcn primitives from `@/components/ui/*`, apply the generated CSS variables first, then compose the language-specific recipes from the companion MD. Katagami remains the source of truth; shadcn names are the implementation surface.

## Do's and Don'ts

- Do Build colour from masked, feathered bleed-fronts at 0.08–0.22 opacity rising from one edge of a surface.
- Do Encode values as granulation density in a well and let the eye weigh them under a JetBrains Mono number.
- Do Reserve exactly one charged madder drop per surface for emphasis.
- Do Keep ink linework and mono metadata crisp; mask pigment away from text for AA contrast on the dark ground.
- Do Style every form control explicitly; keep radii on the 16/24/9999 scale and the masthead open.
- Do Render the settled state with no JavaScript; layer reveal motion on top behind a class the script removes.
- Don't Do not lay the system on white paper or use pastel washes; the ground is saturated dark.
- Don't Do not give a card an accent or highlight edge-stripe, and do not nest cards.
- Don't Do not scatter splatter; more than one charge per surface reads as messy.
- Don't Do not box the nav in a floating pill bar; let the masthead sit open across the header.
- Don't Do not use serif display, default select/checkbox/radio/button styling, or symbol glyphs in copy.

### Accessibility

Maintain WCAG AA by keeping text on the dark ground or near-white ink, never on dense pigment. Focus states use a teal ring plus a soft teal wash halo. Touch targets are at least 44px; disabled states reduce opacity while preserving labels; motion is short with no parallax or flashing and respects prefers-reduced-motion.

## Imagery Direction

### Pairs With

lavis

### Summary

Subjects rendered in layered transparent watercolor glazing on a deep wet ground: translucent granulated mineral-pigment washes bleeding and blooming upward as a feathered capillary front, crisp dry-brush edges and fine black ink contour lines, with one restrained gold splatter cluster. Indigo, prussian-blue and teal carry the field; a single madder streak marks emphasis.

### Subjects

- koi and carp in dark water
- ink-and-wash river currents
- charged pigment drops hitting wet paper
- night estuaries and tidal blooms
- brand pigment plates

### Usage

Full-bleed luminous hero with the colour bleeding up from a deeper lower edge so low-anchored copy stays legible; feature and avatar shots are single centred subjects filling the frame. No text, letters, or logos in the image.

### Element Count

26

### Composition Count

2
shadcn/ui theme
```json
{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "indigo",
  "type": "registry:theme",
  "title": "Indigo shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#0C1020",
      "foreground": "#EAF0FF",
      "card": "#141A30",
      "card-foreground": "#EAF0FF",
      "popover": "#141A30",
      "popover-foreground": "#EAF0FF",
      "primary": "#36D6C6",
      "primary-foreground": "#ffffff",
      "secondary": "#1B2240",
      "secondary-foreground": "#ffffff",
      "muted": "#93A0C4",
      "muted-foreground": "#EAF0FF",
      "accent": "#36D6C6",
      "accent-foreground": "#ffffff",
      "destructive": "#E0533F",
      "border": "#293252",
      "input": "#293252",
      "ring": "#36D6C6",
      "chart-1": "#36D6C6",
      "chart-2": "#1B2240",
      "chart-3": "#36D6C6",
      "chart-4": "#52C28A",
      "chart-5": "#E8B23C",
      "sidebar": "#141A30",
      "sidebar-foreground": "#EAF0FF",
      "sidebar-primary": "#36D6C6",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#36D6C6",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#293252",
      "sidebar-ring": "#36D6C6",
      "radius": "16px"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#36D6C6",
      "primary-foreground": "#ffffff",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#36D6C6",
      "accent-foreground": "#ffffff",
      "destructive": "#E0533F",
      "border": "#303642",
      "input": "#303642",
      "ring": "#36D6C6",
      "chart-1": "#36D6C6",
      "chart-2": "#1B2240",
      "chart-3": "#36D6C6",
      "chart-4": "#52C28A",
      "chart-5": "#E8B23C",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#36D6C6",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#36D6C6",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#303642",
      "sidebar-ring": "#36D6C6",
      "radius": "16px"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019ef897-271a-7750-a228-ff027784b0dd",
    "slug": "indigo",
    "componentManifest": [
      "button",
      "card",
      "input",
      "textarea",
      "select",
      "dialog",
      "sheet",
      "tabs",
      "badge",
      "separator",
      "checkbox",
      "switch",
      "slider",
      "tooltip",
      "dropdown-menu",
      "table"
    ],
    "installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
    "nativeTokenNames": {
      "colors": [
        "accent",
        "accent_2",
        "accent_3",
        "bg",
        "border",
        "error",
        "fiber",
        "info",
        "muted",
        "on_accent",
        "pigment_gold",
        "pigment_indigo",
        "pigment_madder",
        "pigment_teal",
        "primary",
        "secondary",
        "success",
        "surface",
        "surface_2",
        "text",
        "warning"
      ],
      "typography": [
        "base_size",
        "body_font",
        "google_fonts_url",
        "heading_font",
        "heading_transform",
        "heading_weight",
        "letter_spacing",
        "line_height",
        "mono_font",
        "scale_ratio"
      ],
      "radii": [
        "full",
        "lg",
        "md",
        "none",
        "sm"
      ],
      "shadows": [
        "lg",
        "md",
        "sm"
      ],
      "spacing": [
        "base",
        "scale"
      ],
      "surfaces": [
        "bg_pattern",
        "card_style",
        "treatment"
      ],
      "borders": [
        "accent_width",
        "character",
        "default_width",
        "style"
      ],
      "motion": [
        "duration",
        "easing",
        "philosophy"
      ]
    }
  }
}
```
in the wild

embodiments

bespoke marketing landingopen full page ↗
landing · indigo
DESIGN.md

at a glance

Typography

headline-lgArchivo Expanded · 33px · 700

The quick brown fox jumps

headline-mdArchivo Expanded · 27px · 600

The quick brown fox jumps

body-mdArchivo · 17px · 400

The quick brown fox jumps

label-mdJetBrains Mono · 12px · 600

The quick brown fox jumps

shadcn/ui

implementation kit

built with

Agent-generated

remix lane

try a remix

Keep Indigoand swap a palette and an art style onto it — the landing & dashboard recolor live. The Studio does the same with all three lanes free.

UI language · fixed
Indigo
Palette
Art style
Landing Page
live preview · recolored + filled
lineage

Family

Evolved from
related

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