Pastel palette
Halcyon Kiln
Five pastel stops with room to breathe — #005f69 grounds, #008c99 and #37a8b5 do the talking, #5fb5c0 softens, #7cd2de 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.
cyanpastelfive-stop
#005f69
#008c99
#37a8b5
#5fb5c0
#7cd2de
The generator opens with #005f69 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.