Blue Hour palette
Maroon Bluff
From #005575 ink through #0080ad, #349cca, #5aaad2 to #77c7f0 light, Maroon Bluff is a tetradic 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.
skybluehourfive-stop
#005575
#0080ad
#349cca
#5aaad2
#77c7f0
The generator opens with #005575 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.