Sumi palette
Indigo Ridge
Five sumi stops with room to breathe — #9c4828 grounds, #c87355 and #e68f70 do the talking, #efa388 softens, #ffc6b3 lifts. The split-complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#9c4828
#c87355
#e68f70
#efa388
#ffc6b3
The generator opens with #9c4828 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.