Blue Hour palette
Jute Square
From #00465c ink through #007091, #308bad, #5299b6 to #6eb5d3 light, Jute Square is a tetradic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanbluehourfive-stophigh-contrast
#00465c
#007091
#308bad
#5299b6
#6eb5d3
The generator opens with #00465c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.