Blue Hour palette
Chalky Pagoda
Five stops tuned to sit together without fighting — #00559c ink anchors the set, #97c7ff opens it up, and #3c7fc7, #589be5, #72abeb cross the middle in a triadic arrangement. Chalky Pagoda suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#00559c
#3c7fc7
#589be5
#72abeb
#97c7ff
The generator opens with #00559c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.