Sumi palette
Denim Kiln
Five sumi stops with room to breathe — #7b3038 grounds, #a65a5f and #c47579 do the talking, #cd888b softens, #eba4a7 lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#7b3038
#a65a5f
#c47579
#cd888b
#eba4a7
The generator opens with #7b3038 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.