Prairie palette
Cozy Estuary
From #00505d ink through #007b8e, #3396aa, #57a4b5 to #74c1d1 light, Cozy Estuary 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.
cyanprairiefive-stop
#00505d
#007b8e
#3396aa
#57a4b5
#74c1d1
The generator opens with #00505d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.