Sumi palette
Umber Depot
Umber Depot runs #8c0032 through #bf3856, #df5670, #e57183 to #ff91a0 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#8c0032
#bf3856
#df5670
#e57183
#ff91a0
The generator opens with #8c0032 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.