Sumi palette
Obsidian Porch
Dark anchor, working middle, light release: #972447, #af3b5a, #007b74, #ce5774, #009991 form a tetradic sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system.
pinksumifive-stop
#972447
#af3b5a
#007b74
#ce5774
#009991
The generator opens with #972447 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.