Sumi palette
Tawny Archive
Dark anchor, working middle, light release: #862300, #ba4a29, #d96645, #e07d61, #ff9a7d form a tetradic 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 as a text pair.
redsumifive-stophigh-contrast
#862300
#ba4a29
#d96645
#e07d61
#ff9a7d
The generator opens with #862300 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.