Blue Hour palette
Brumal Brook
Dark anchor, working middle, light release: #006d85, #009abb, #3bb6d8, #66c5e1, #85e2ff 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.
cyanbluehourfive-stop
#006d85
#009abb
#3bb6d8
#66c5e1
#85e2ff
The generator opens with #006d85 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.