Opera palette
Birch Abbey
From #004b71 ink through #0074ac, #3190c9, #559ed0 to #71bbee light, Birch Abbey is a tetradic progression that holds together at any size. Use it for bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#004b71
#0074ac
#3190c9
#559ed0
#71bbee
The generator opens with #004b71 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.