Aurora palette
Sloe Square
Five aurora stops with room to breathe — #3c90be grounds, #0098a6 and #259b84 do the talking, #3ab4c3 softens, #4ab7a0 lifts. The tetradic bones keep it coherent across event posters that compete with a wall of other posters.
skyaurorafive-stop
#3c90be
#0098a6
#259b84
#3ab4c3
#4ab7a0
The generator opens with #3c90be as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.