dark-blue
1. [ adjective ] (color) having a color similar to that of a clear unclouded sky
Synonyms: blue bluish light-blue blue-black blueish
Examples:

"October's bright blue weather"- Helen Hunt Jackson "a blue flame" "blue haze of tobacco smoke"

Related terms: chromatic
Similar spelling:   dark_blue
  dark_beer
  dark-brown
  dark_bread