Sumi palette
Butter Mill
Five stops tuned to sit together without fighting — #a4371c ink anchors the set, #ffc0b0 opens it up, and #d1654b, #f08166, #f89780 cross the middle in a triadic arrangement. Butter Mill suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a4371c
#d1654b
#f08166
#f89780
#ffc0b0
The generator opens with #a4371c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.