Storm palette
Fiery Foundry
From #004a59 ink through #00758b, #3190a7, #549eb1 to #71bace light, Fiery Foundry is a analogous progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
cyanstormfive-stophigh-contrast
#004a59
#00758b
#3190a7
#549eb1
#71bace
The generator opens with #004a59 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.