Sumi palette
Cinnamon Marsh
Dark anchor, working middle, light release: #b04828, #0071ba, #007e77, #cf6444, #009c93 form a split-complementary sumi set with somewhere to stand at every lightness. Made for event posters that compete with a wall of other posters.
redsumifive-stop
#b04828
#0071ba
#007e77
#cf6444
#009c93
The generator opens with #b04828 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.