Sumi palette
Fern Kiosk
Dark anchor, working middle, light release: #882a3f, #9f3f52, #007370, #bd5a6b, #00918c form a tetradic sumi set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines.
redsumifive-stop
#882a3f
#9f3f52
#007370
#bd5a6b
#00918c
The generator opens with #882a3f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.