Sumi palette
Ember Harbor
Dark anchor, working middle, light release: #8a2800, #c5471b, #e5643b, #eb7d5b, #ffa183 form a triadic 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.
orangesumifive-stop
#8a2800
#c5471b
#e5643b
#eb7d5b
#ffa183
The generator opens with #8a2800 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.