Frost palette
Polar Library
Dark anchor, working middle, light release: #004b5b, #00768d, #3191a9, #559fb3, #71bbd0 form a monochromatic frost set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanfrostfive-stophigh-contrast
#004b5b
#00768d
#3191a9
#559fb3
#71bbd0
The generator opens with #004b5b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.