Sumi palette
Marble Cove
Marble Cove runs #7a0500 through #b62618, #d64736, #dc6452 to #fc806d in five measured steps, the split-complementary structure keeping every neighbor honest. Reach for it for dashboards where status colors must survive color-vision differences. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#7a0500
#b62618
#d64736
#dc6452
#fc806d
The generator opens with #7a0500 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.