Monochrome palette
Lullaby Moor
From #005a7f ink through #1484b7, #3ca0d4, #60afdc to #7dccfa light, Lullaby Moor 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.
skymonochromefive-stop
#005a7f
#1484b7
#3ca0d4
#60afdc
#7dccfa
The generator opens with #005a7f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.