Disco palette
Cozy Harbor
From #005a97 ink through #955b00, #006eb7, #b97200 to #2f8ad5 light, Cozy Harbor is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size.
skydiscofive-stop
#005a97
#955b00
#006eb7
#b97200
#2f8ad5
The generator opens with #005a97 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.