Retro palette
Rocky Foundry
Five retro stops with room to breathe — #5b4a00 grounds, #87711b and #a28c3b do the talking, #af9c5b softens, #cbb876 lifts. The tetradic 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.
amberretrofive-stop
#5b4a00
#87711b
#a28c3b
#af9c5b
#cbb876
The generator opens with #5b4a00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.