Sumi palette
Brisk Alley
Five sumi stops with room to breathe — #b03037 grounds, #de6161 and #fe7d7c do the talking, #ff9996 softens, #ffc7c4 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.
redsumifive-stop
#b03037
#de6161
#fe7d7c
#ff9996
#ffc7c4
The generator opens with #b03037 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.