Blue Hour palette
Hazy Boulevard
Dark anchor, working middle, light release: #004f99, #2378d3, #4394f2, #62a5f5, #90c2ff form a tetradic blue hour set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#004f99
#2378d3
#4394f2
#62a5f5
#90c2ff
The generator opens with #004f99 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.