Frost palette
Frosted Bluff
From #004654 ink through #007085, #308ba1, #5299ab to #6eb5c8 light, Frosted Bluff is a analogous progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanfrostfive-stophigh-contrast
#004654
#007085
#308ba1
#5299ab
#6eb5c8
The generator opens with #004654 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.