Sumi palette
Birch Prairie
Dark anchor, working middle, light release: #9d2c00, #cf5733, #ef734f, #f58b6c, #ffb49e form a split-complementary sumi set with somewhere to stand at every lightness. Made for dashboards where status colors must survive color-vision differences. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#9d2c00
#cf5733
#ef734f
#f58b6c
#ffb49e
The generator opens with #9d2c00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.