Sumi palette
Tranquil Meadow
Dark anchor, working middle, light release: #8f2200, #ce3c0f, #ee5b34, #f47757, #ffa189 form a split-complementary sumi set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#8f2200
#ce3c0f
#ee5b34
#f47757
#ffa189
The generator opens with #8f2200 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.