Frost palette
Indigo Delta
From #00666c ink through #00939c, #39afb8, #62bdc4 to #7fdae1 light, Indigo Delta is a split-complementary progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
cyanfrostfive-stop
#00666c
#00939c
#39afb8
#62bdc4
#7fdae1
The generator opens with #00666c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.