Sumi palette
Leafy Cabin
Five sumi stops with room to breathe — #a32a00 grounds, #d05b3c and #ef7757 do the talking, #f68f73 softens, #ffb8a4 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
#a32a00
#d05b3c
#ef7757
#f68f73
#ffb8a4
The generator opens with #a32a00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.