Blue Hour palette
Marble Bluff
Dark anchor, working middle, light release: #003c7e, #0061c4, #2b7de3, #4c8ee5, #6cabff form a triadic blue hour set with somewhere to stand at every lightness. Made for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#003c7e
#0061c4
#2b7de3
#4c8ee5
#6cabff
The generator opens with #003c7e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.