Frost palette
Thistled Reef
Dark anchor, working middle, light release: #005d74, #95533a, #00738e, #b26e54, #318eaa form a tetradic frost set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
cyanfrostfive-stop
#005d74
#95533a
#00738e
#b26e54
#318eaa
The generator opens with #005d74 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.