Blue Hour palette
Crisp Oasis
From #00657a ink through #0091af, #39adcc, #62bbd5 to #7fd8f3 light, Crisp Oasis is a analogous 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 for large text.
cyanbluehourfive-stop
#00657a
#0091af
#39adcc
#62bbd5
#7fd8f3
The generator opens with #00657a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.