Sumi palette
Nightfall Canyon
Nightfall Canyon runs #7c2810 through #a7533d, #c56e57, #ce826e to #ec9e89 in five measured steps, the triadic structure keeping every neighbor honest. Reach for it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#7c2810
#a7533d
#c56e57
#ce826e
#ec9e89
The generator opens with #7c2810 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.