Sumi palette
Spruce Loft
Five sumi stops with room to breathe — #9d0234 grounds, #cb465c and #eb6376 do the talking, #f17d8a softens, #ffa6ad lifts. The tetradic bones keep it coherent across museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#9d0234
#cb465c
#eb6376
#f17d8a
#ffa6ad
The generator opens with #9d0234 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.