Nebula palette
Greige Hollow
Five nebula stops with room to breathe — #00526f grounds, #007da6 and #3399c3 do the talking, #59a7cb softens, #75c4e9 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.
cyannebulafive-stop
#00526f
#007da6
#3399c3
#59a7cb
#75c4e9
The generator opens with #00526f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.