Nebula palette
Polar Crossing
Five stops tuned to sit together without fighting — #78006a ink anchors the set, #ea8cd7 opens it up, and #a53b94, #c357b0, #cc70ba cross the middle in a analogous arrangement. Polar Crossing suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
magentanebulafive-stophigh-contrast
#78006a
#a53b94
#c357b0
#cc70ba
#ea8cd7
The generator opens with #78006a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.