Blue Hour palette
Opal Cellar
A quiet five-stop blue hour arc with a confident middle — #004880 carries the weight and #73b9ff carries the air, with #0070c1, #308cdf and #539ce3 bridging in triadic formation. Built for podcast cover art at sixty pixels square. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#004880
#0070c1
#308cdf
#539ce3
#73b9ff
The generator opens with #004880 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.