Blue Hour palette
Punchy Square
Five stops tuned to sit together without fighting — #00689e ink anchors the set, #a9daff opens it up, and #3b93cd, #59afeb, #78bff2 cross the middle in a monochromatic arrangement. Punchy Square suits newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#00689e
#3b93cd
#59afeb
#78bff2
#a9daff
The generator opens with #00689e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.