Blue Hour palette
Umber Lagoon
From #0054a8 ink through #2d7edf, #4b9afe, #6bacff to #9fc9ff light, Umber Lagoon is a tetradic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#0054a8
#2d7edf
#4b9afe
#6bacff
#9fc9ff
The generator opens with #0054a8 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.