Sumi palette
Fiery Porch
Dark anchor, working middle, light release: #97093a, #af2a4d, #007470, #ce4966, #00928d form a tetradic sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system.
redsumifive-stop
#97093a
#af2a4d
#007470
#ce4966
#00928d
The generator opens with #97093a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.