Acid palette
Silvery Harbor
From #4370a8 ink through #007a9a, #007f7e, #3395b6 to #1e9c9b light, Silvery Harbor is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size.
cyanacidfive-stop
#4370a8
#007a9a
#007f7e
#3395b6
#1e9c9b
The generator opens with #4370a8 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.