Retro palette
Straw Ridge
Five retro stops with room to breathe — #b04f00 grounds, #6f5dbe and #008364 do the talking, #ce6b2d softens, #00a27c lifts. The monochromatic bones keep it coherent across event posters that compete with a wall of other posters.
blueretrofive-stop
#b04f00
#6f5dbe
#008364
#ce6b2d
#00a27c
The generator opens with #b04f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.