Blue Hour palette
Evening Clearing
Dark anchor, working middle, light release: #00528e, #007bcf, #3397ee, #59a7f1, #88c4ff 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
#00528e
#007bcf
#3397ee
#59a7f1
#88c4ff
The generator opens with #00528e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.