Sumi palette
Silvery Reef
Five stops tuned to sit together without fighting — #ab1931 ink anchors the set, #ffb9b8 opens it up, and #d9525b, #f96f75, #ff898c cross the middle in a monochromatic arrangement. Silvery Reef suits national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#ab1931
#d9525b
#f96f75
#ff898c
#ffb9b8
The generator opens with #ab1931 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.