Blue Hour palette
Copper Moor
Five stops tuned to sit together without fighting — #0058ad ink anchors the set, #a6cdff opens it up, and #2281eb, #519fff, #71b0ff cross the middle in a analogous arrangement. Copper Moor suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#0058ad
#2281eb
#519fff
#71b0ff
#a6cdff
The generator opens with #0058ad as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.