Jewel palette
Oat Meadow
Five jewel stops with room to breathe — #1f3a9d grounds, #4466c7 and #5d82e5 do the talking, #7293e9 softens, #91b1ff 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 as a text pair.
skyjewelfive-stophigh-contrast
#1f3a9d
#4466c7
#5d82e5
#7293e9
#91b1ff
The generator opens with #1f3a9d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.