Sumi palette
Mahogany Plaza
From #6d1f10 ink through #984a3a, #b56453, #be7869 to #dc9383 light, Mahogany Plaza is a analogous progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#6d1f10
#984a3a
#b56453
#be7869
#dc9383
The generator opens with #6d1f10 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.