Frost palette
Opal Gallery
From #005f6f ink through #008ba2, #37a7be, #5fb5c9 to #7cd2e6 light, Opal Gallery is a complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanfrostfive-stop
#005f6f
#008ba2
#37a7be
#5fb5c9
#7cd2e6
The generator opens with #005f6f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.