Frost palette
Kiln Mill
Dark anchor, working middle, light release: #004e64, #007899, #3293b5, #56a1bf, #72bedc form a split-complementary frost set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanfrostfive-stop
#004e64
#007899
#3293b5
#56a1bf
#72bedc
The generator opens with #004e64 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.