academy blue

== English == === Etymology === First attested to 1931, named for a shade of azure used by the U.S. Air Force === Pronunciation === (Received Pronunciation) IPA(key): /əˈkæd.ə.mi bluː/ (US) IPA(key): /əˈkæd.ə.mi blu/ === Noun === academy blue (uncountable) A moderate greenish blue.