Sumi palette
Primrose Inn
Five stops tuned to sit together without fighting — #b7150a ink anchors the set, #ffc2b7 opens it up, and #e55342, #ff7764, #ff9484 cross the middle in a triadic arrangement. Primrose Inn suits national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#b7150a
#e55342
#ff7764
#ff9484
#ffc2b7
The generator opens with #b7150a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.