Retro palette
Smoky Boulevard
From #0065a1 ink through #3a90d1, #58acef, #77bcf5 to #a9d7ff light, Smoky Boulevard is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#0065a1
#3a90d1
#58acef
#77bcf5
#a9d7ff
The generator opens with #0065a1 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.