Sumi palette
Late Prairie
Five sumi stops with room to breathe — #9f2a00 grounds, #cf5736 and #ef7352 do the talking, #f58b6e softens, #ffb49f lifts. The tetradic bones keep it coherent across bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#9f2a00
#cf5736
#ef7352
#f58b6e
#ffb49f
The generator opens with #9f2a00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.