Sumi palette
Nightfall Ridge
Five sumi stops with room to breathe — #b51046 grounds, #e3506f and #ff728b do the talking, #ff91a1 softens, #ffc1c7 lifts. The tetradic bones keep it coherent across dashboards where status colors must survive color-vision differences. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#b51046
#e3506f
#ff728b
#ff91a1
#ffc1c7
The generator opens with #b51046 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.