Sumi palette
Golden Marsh
Five stops tuned to sit together without fighting — #9f2400 ink anchors the set, #ffb29e opens it up, and #cf5437, #ef7153, #f5896f cross the middle in a tetradic arrangement. Golden Marsh suits national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#9f2400
#cf5437
#ef7153
#f5896f
#ffb29e
The generator opens with #9f2400 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.