Blue Hour palette
Elder Cellar
From #006b8f ink through #0097c8, #3ab4e6, #65c2ed to #98ddff light, Elder Cellar is a analogous progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#006b8f
#0097c8
#3ab4e6
#65c2ed
#98ddff
The generator opens with #006b8f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.