Blue Hour palette
Larkspur Grove
Dark anchor, working middle, light release: #5959b0, #1768af, #00718b, #3883cd, #008ead form a tetradic blue hour set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
skybluehourfive-stop
#5959b0
#1768af
#00718b
#3883cd
#008ead
The generator opens with #5959b0 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.