Sumi palette
Oaken Plaza
Dark anchor, working middle, light release: #d86443, #2391e3, #00a197, #f8805f, #00c1b4 form a split-complementary sumi set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
redsumifive-stop
#d86443
#2391e3
#00a197
#f8805f
#00c1b4
The generator opens with #d86443 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.