Sumi palette
Granite Prairie
Five sumi stops with room to breathe — #903000 grounds, #d04900 and #f06730 do the talking, #f68156 softens, #ffab8d lifts. The triadic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#903000
#d04900
#f06730
#f68156
#ffab8d
The generator opens with #903000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.