Sumi palette
Honeyed Ridge
From #862003 ink through #b24f37, #d16a51, #d8806a to #f79c85 light, Honeyed Ridge is a analogous 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 as a text pair.
redsumifive-stophigh-contrast
#862003
#b24f37
#d16a51
#d8806a
#f79c85
The generator opens with #862003 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.