Retro palette
Windy Delta
From #8c1b0e ink through #b84d3d, #d76957, #de7f6f to #fd9b8a light, Windy Delta is a analogous progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
redretrofive-stop
#8c1b0e
#b84d3d
#d76957
#de7f6f
#fd9b8a
The generator opens with #8c1b0e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.