Retro palette
Calico Reef
Five retro stops with room to breathe — #742a01 grounds, #9e5434 and #bb6f4e do the talking, #c48266 softens, #e29d81 lifts. The analogous bones keep it coherent across event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
orangeretrofive-stophigh-contrast
#742a01
#9e5434
#bb6f4e
#c48266
#e29d81
The generator opens with #742a01 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.