Sumi palette
Spruce Mill
Five sumi stops with room to breathe — #8b2200 grounds, #b85136 and #d76d51 do the talking, #de836a softens, #fd9f86 lifts. The split-complementary bones keep it coherent across hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#8b2200
#b85136
#d76d51
#de836a
#fd9f86
The generator opens with #8b2200 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.