Sumi palette
Sage Oasis
Five sumi stops with room to breathe — #6d2500 grounds, #a2461d and #c0613a do the talking, #c87656 softens, #e79270 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.
orangesumifive-stophigh-contrast
#6d2500
#a2461d
#c0613a
#c87656
#e79270
The generator opens with #6d2500 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.