navy blue
US /ˌneɪ.vi ˈbluː/
UK /ˌneɪ.vi ˈbluː/

1.
azul marino
a very dark blue color, similar to the color of the uniforms worn by sailors in the navy
:
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She wore a classic navy blue suit to the interview.
Llevaba un traje clásico azul marino para la entrevista.
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The walls were painted a deep navy blue.
Las paredes estaban pintadas de un profundo azul marino.
1.
azul marino
a very dark blue color
:
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The new uniform is a rich navy blue.
El nuevo uniforme es de un rico azul marino.
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She chose navy blue for the accent wall.
Ella eligió el azul marino para la pared de acento.