Sumi palette
Coral Deck
Five sumi stops with room to breathe — #942f00 grounds, #cc5223 and #ec6f42 do the talking, #f28762 softens, #ffae92 lifts. The triadic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#942f00
#cc5223
#ec6f42
#f28762
#ffae92
The generator opens with #942f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.