Sumi palette
Plum Library
A quiet five-stop sumi arc with a confident middle — #a01600 carries the weight and #ffad9d carries the air, with #cf4d38, #ef6a53 and #f5836e bridging in split-complementary formation. Built for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a01600
#cf4d38
#ef6a53
#f5836e
#ffad9d
The generator opens with #a01600 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.