Sumi palette
Straw Atelier
Five sumi stops with room to breathe — #960001 grounds, #ca3a2e and #ea5949 do the talking, #f07465 softens, #ff9d8e lifts. The monochromatic bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#960001
#ca3a2e
#ea5949
#f07465
#ff9d8e
The generator opens with #960001 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.