Noir palette
Sumac Grove
From #00548b ink through #007dcb, #3399e9, #5aa9ee to #86c5ff light, Sumac Grove 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.
skynoirfive-stop
#00548b
#007dcb
#3399e9
#5aa9ee
#86c5ff
The generator opens with #00548b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.