Sumi palette
Calico Bookshop
Dark anchor, working middle, light release: #b9283f, #d24253, #008f92, #f2606d, #00adb2 form a tetradic sumi set with somewhere to stand at every lightness. Made for music artwork with loud darks and a glowing accent.
redsumifive-stop
#b9283f
#d24253
#008f92
#f2606d
#00adb2
The generator opens with #b9283f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.