Sumi palette
Crackling Library
Five sumi stops with room to breathe — #9b4546 grounds, #3d62a5 and #3a7432 do the talking, #b9605f softens, #548f4c lifts. The tetradic bones keep it coherent across museum exhibition graphics with long sightlines.
skysumifive-stop
#9b4546
#3d62a5
#3a7432
#b9605f
#548f4c
The generator opens with #9b4546 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.