Sumi palette
Bitter Ridge
From #a33c00 ink through #d9612b, #f97e4a, #ff956b to #ffc2aa light, Bitter Ridge is a monochromatic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#a33c00
#d9612b
#f97e4a
#ff956b
#ffc2aa
The generator opens with #a33c00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.