Sumi palette
Pumice Estuary
Dark anchor, working middle, light release: #8f1b00, #bf4931, #de654c, #e57d67, #ff9d87 form a tetradic sumi set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#8f1b00
#bf4931
#de654c
#e57d67
#ff9d87
The generator opens with #8f1b00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.