Sumi palette
Butter Deck
Five sumi stops with room to breathe — #8c2318 grounds, #b85244 and #d76d5e do the talking, #de8375 softens, #fda090 lifts. The monochromatic bones keep it coherent across event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#8c2318
#b85244
#d76d5e
#de8375
#fda090
The generator opens with #8c2318 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.