Opera palette
Ember Fjord
From #005189 ink through #007aca, #3296e8, #58a6ec to #82c3ff light, Ember Fjord 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.
skyoperafive-stop
#005189
#007aca
#3296e8
#58a6ec
#82c3ff
The generator opens with #005189 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.