Sumi palette
Sunset Square
Dark anchor, working middle, light release: #9a0051, #b42264, #007969, #d4447e, #009783 form a tetradic sumi set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
pinksumifive-stop
#9a0051
#b42264
#007969
#d4447e
#009783
The generator opens with #9a0051 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.