Opera palette
Indigo Fjord
From #00486d ink through #0071a7, #308cc4, #539bcb to #6fb8e9 light, Indigo Fjord 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 as a text pair.
skyoperafive-stophigh-contrast
#00486d
#0071a7
#308cc4
#539bcb
#6fb8e9
The generator opens with #00486d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.