Sumi palette
Copper Brook
Five sumi stops with room to breathe — #ac001b grounds, #dc4747 and #fc6562 do the talking, #ff837d softens, #ffb4ae lifts. The complementary bones keep it coherent across event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#ac001b
#dc4747
#fc6562
#ff837d
#ffb4ae
The generator opens with #ac001b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.