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Color lane

Sumi Rail

Ink, paper, and one vermilion seal — a warm, quiet palette for calm operating screens where a single stamp carries all the urgency.

Signature · the star
primary accentShu seal · #c8442e
Ai indigo · #3a4b63
Matcha · #5e7350
Neutrals · the ground
bg
#efe9dd
surface
#f8f4ec
text
#211c18
muted
#7a7065
border
#d7cdbc
Semantic · functional accessory
success
warning
error
info
Ramps
accent
neutral
Download .csswarmink-washvermilionwashimuted-supports
Do
  • · reserve vermilion for the one signal that matters
  • · keep indigo and matcha as quiet supports for links and success
  • · let the warm washi ground and paper surface carry most of the screen
Don't
  • · do not flood any accent across a panel
  • · do not introduce a fourth accent hue
  • · do not place ink text on a saturated fill — keep type on paper
try it

remix with this palette

Drop Sumi Rail onto any UI language and swap the art style — the preview recolors live.

UI language
Palette · fixed
Sumi Rail
Art style
Landing Page
live preview · recolored + filled