Retro palette
Stone Plaza
Five retro stops with room to breathe — #765600 grounds, #a27f33 and #be9b50 do the talking, #caab6e softens, #e7c88a 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 for large text.
amberretrofive-stop
#765600
#a27f33
#be9b50
#caab6e
#e7c88a
The generator opens with #765600 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.