Blue Hour palette
Chambray Kiln
Dark anchor, working middle, light release: #00475a, #00718e, #308caa, #529ab4, #6fb6d1 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 as a text pair.
cyanbluehourfive-stophigh-contrast
#00475a
#00718e
#308caa
#529ab4
#6fb6d1
The generator opens with #00475a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.