Le mot anglais pour bleu marine est
navy blue

Définition en anglais

bleu marine
1. adj. navy blue (of a dark blue colour)

navy	©
1. n. A country's entire sea force, including ships and personnel.
2. n. A governmental department in charge of a country's sea force.
3. n. A dark blue colour, usually called navy blue.
(color panel, 000080)
4. adj. Having the dark blue colour of navy blue.
5. adj. Belonging to the navy; typical of the navy.