Sumi palette
Sienna Beacon
From #78271f ink through #a35247, #c16d61, #ca8175 to #e89c90 light, Sienna Beacon 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
#78271f
#a35247
#c16d61
#ca8175
#e89c90
The generator opens with #78271f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.