Blue Hour palette
Flannel Boulevard
Flannel Boulevard runs #004972 through #0072ae, #308ecb, #549dd2 to #70b9f0 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for music artwork with loud darks and a glowing accent. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#004972
#0072ae
#308ecb
#549dd2
#70b9f0
The generator opens with #004972 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.