Sumi palette
Halcyon Deck
Five stops tuned to sit together without fighting — #943218 ink anchors the set, #ffb09b opens it up, and #c05f46, #df7b60, #e79079 cross the middle in a split-complementary arrangement. Halcyon Deck suits indie game interfaces with a strong day-night rhythm. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#943218
#c05f46
#df7b60
#e79079
#ffb09b
The generator opens with #943218 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.