Sumi palette
Ebony Fjord
Five sumi stops with room to breathe — #7c2228 grounds, #a74e4f and #c56969 do the talking, #ce7e7c softens, #ec9997 lifts. The tetradic bones keep it coherent across craft brewery cans lined up in a cooler door. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#7c2228
#a74e4f
#c56969
#ce7e7c
#ec9997
The generator opens with #7c2228 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.