Acid palette
Denim Abbey
Dark anchor, working middle, light release: #437bb2, #0085a1, #008a84, #35a1be, #2ca6a0 form a tetradic acid set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
skyacidfive-stop
#437bb2
#0085a1
#008a84
#35a1be
#2ca6a0
The generator opens with #437bb2 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.