Sumi palette
Mossy Cabin
Dark anchor, working middle, light release: #a4002a, #d83f4f, #f85e69, #fe7b80, #ffacac form a analogous sumi set with somewhere to stand at every lightness. Made for bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a4002a
#d83f4f
#f85e69
#fe7b80
#ffacac
The generator opens with #a4002a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.