Sumi palette
Mercurial Mill
Dark anchor, working middle, light release: #801200, #bd2f16, #dd4f36, #e36b54, #ff8a73 form a triadic sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#801200
#bd2f16
#dd4f36
#e36b54
#ff8a73
The generator opens with #801200 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.