Sumi palette
Yonder Canyon
Five sumi stops with room to breathe — #8c001e grounds, #bd3b43 and #dd585d do the talking, #e37273 softens, #ff9190 lifts. The tetradic bones keep it coherent across bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#8c001e
#bd3b43
#dd585d
#e37273
#ff9190
The generator opens with #8c001e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.