Blue Hour palette
Lilac Dock
Dark anchor, working middle, light release: #21599b, #4e83c5, #699fe3, #81afe9, #a3cbff form a tetradic blue hour set with somewhere to stand at every lightness. Made for music artwork with loud darks and a glowing accent. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#21599b
#4e83c5
#699fe3
#81afe9
#a3cbff
The generator opens with #21599b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.