Sumi palette
Fern Beacon
Five sumi stops with room to breathe — #b33e4a grounds, #6a59be and #737000 do the talking, #007c7f softens, #d25a63 lifts. The monochromatic bones keep it coherent across event posters that compete with a wall of other posters.
redsumifive-stop
#b33e4a
#6a59be
#737000
#007c7f
#d25a63
The generator opens with #b33e4a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.