Blue Hour palette
Heather Harbor
From #0064a7 ink through #008ee9, #49abff, #71bbff to #acd6ff light, Heather Harbor is a tetradic progression that holds together at any size. Use it for flower-shop wraps and delivery van livery together. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#0064a7
#008ee9
#49abff
#71bbff
#acd6ff
The generator opens with #0064a7 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.