Sumi palette
Flint Fen
From #731800 ink through #a83c22, #c7583e, #ce6f58 to #ed8b73 light, Flint Fen is a split-complementary progression that holds together at any size. Use it for indie game interfaces with a strong day-night rhythm. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#731800
#a83c22
#c7583e
#ce6f58
#ed8b73
The generator opens with #731800 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.