Sumi palette
Rocky Delta
Five stops tuned to sit together without fighting — #8a3626 ink anchors the set, #fbad9c opens it up, and #b66150, #d47c6a, #dd9080 cross the middle in a analogous arrangement. Rocky Delta suits bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#8a3626
#b66150
#d47c6a
#dd9080
#fbad9c
The generator opens with #8a3626 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.