Sumi palette
Oyster Glade
Dark anchor, working middle, light release: #972a09, #af4124, #00778c, #ce5d40, #0094ad form a complementary sumi set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes.
redsumifive-stop
#972a09
#af4124
#00778c
#ce5d40
#0094ad
The generator opens with #972a09 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.