Sumi palette
Quiet Pavilion
Five sumi stops with room to breathe — #a72309 grounds, #d45740 and #f4745b do the talking, #fa8c76 softens, #ffb8a9 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
#a72309
#d45740
#f4745b
#fa8c76
#ffb8a9
The generator opens with #a72309 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.