Sumi palette
Russet Deck
Dark anchor, working middle, light release: #a9164d, #c13360, #00837a, #e1527a, #00a197 form a tetradic sumi set with somewhere to stand at every lightness. Made for bakery boxes stamped with a single ink color.
pinksumifive-stop
#a9164d
#c13360
#00837a
#e1527a
#00a197
The generator opens with #a9164d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.