a dark blue colour (as adjective): a navy-blue suit
WordReference Random House Unabridged Dictionary of American English © 2026
na′vy blue′,
na′vy-blue′, adj.
- Fine Arta dark blue.
- 1830–40
Collins Concise English Dictionary © HarperCollins Publishers::
'navy blue' also found in these entries (note: many are not synonyms or translations):