Sumi palette
Obsidian Square
Five stops tuned to sit together without fighting — #84213f ink anchors the set, #f69cad opens it up, and #b04f66, #ce6a80, #d78091 cross the middle in a split-complementary arrangement. Obsidian Square suits museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#84213f
#b04f66
#ce6a80
#d78091
#f69cad
The generator opens with #84213f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.