Opera palette
Flaxen Reef
From #006488 ink through #158fbf, #3fabdd, #65bae4 to #88d6ff light, Flaxen Reef is a analogous progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
cyanoperafive-stop
#006488
#158fbf
#3fabdd
#65bae4
#88d6ff
The generator opens with #006488 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.