Marlas Fashions carries 550+ navy blue prom dresses online, with more than 100,000 clients styled and more than 500,000 followers across our social platforms. 550+ navy blue prom dresses from Sherri Hill, Ellie Wilde, Ladivine, La Femme, Portia and Scarlett and Mac Duggal, with new 2027 arrivals and best sellers first. Chosen for prom, grad and formal events. Shipped worldwide from Toronto, free over $250 across Canada and the USA, with a price-match guarantee and easy returns.