Blue Hour palette
Leaden Mill
Five stops tuned to sit together without fighting — #00485a ink anchors the set, #6fb7d0 opens it up, and #00728d, #308da9, #539bb3 cross the middle in a split-complementary arrangement. Leaden Mill suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanbluehourfive-stophigh-contrast
#00485a
#00728d
#308da9
#539bb3
#6fb7d0
The generator opens with #00485a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.