Blue Hour palette
Flint Lagoon
Five stops tuned to sit together without fighting — #005090 ink anchors the set, #89c2ff opens it up, and #0078d3, #3294f2, #57a5f5 cross the middle in a split-complementary arrangement. Flint Lagoon suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#005090
#0078d3
#3294f2
#57a5f5
#89c2ff
The generator opens with #005090 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.