Daylight palette
Sloe Fen
From #006781 ink through #0093b7, #39afd4, #63bddd to #80dbfb light, Sloe Fen is a analogous progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
cyandaylightfive-stop
#006781
#0093b7
#39afd4
#63bddd
#80dbfb
The generator opens with #006781 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.