noun
army blue
A dark, muted shade of blue associated with military uniforms.
彼はアーミーブルーのジャケットを着ていた。
He was wearing an army blue jacket.
Variant with interpunct, sometimes used for clarity.
ネイビーブルー is a darker, more formal navy blue, while アーミーブルー is a slightly lighter, muted blue with military connotations.
Borrowed from English 'army blue'.