Sumi palette
Powdery Square
From #7f2400 ink through #ae4e2f, #cc694a, #d47f64 to #f39b7f light, Powdery Square is a split-complementary 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
#7f2400
#ae4e2f
#cc694a
#d47f64
#f39b7f
The generator opens with #7f2400 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.