Sumi palette
Cobalt Crossing
Dark anchor, working middle, light release: #864cb4, #b73f15, #007991, #557a00, #d65c36 form a triadic sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system.
violetsumifive-stop
#864cb4
#b73f15
#007991
#557a00
#d65c36
The generator opens with #864cb4 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.