Sumi palette
Copper Heath
Dark anchor, working middle, light release: #8a003b, #c1315f, #e15079, #e76c8b, #ff8fa8 form a tetradic 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.
pinksumifive-stophigh-contrast
#8a003b
#c1315f
#e15079
#e76c8b
#ff8fa8
The generator opens with #8a003b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.