Modest prom dresses in blue offer higher necklines and sleeve options while keeping the shade soft and refined
Pair the striking silhouette with an evening coat and timeless accessories, such as this clutch and gold wristwatch
It's also worth noting that while Birdy Grey has some ready-to-ship styles and offers rush production for others, many dresses are made-to-order and can take up to eight weeks to ship so plan ahead." Emily Rumsey, Associate Commerce Editor The vibe: Classic, timeless, colorful Size range: 2XS-3XL Price level: Affordable Return window: Within 30 days of delivery Top perks: 170 dress styles, 112 colors, 6 fabrics, prices starting at $99, rush production available EXCLUSIVE CODE: Use KNOTFRIENDS to get 10 free swatches (valid for first time customers only)

Outfit Formulas: 4 Black Tie Summer Looks Formula 1: Classic Evening Glamour Dress: Hollis Navy Lace Back Maxi Shoes: Gold strappy heels Bag: Gold or black satin clutch Jewelry: Drop earrings, no necklace needed Formula 2: Modern Minimalist Dress: Brooke Black A-Line One Shoulder Stretch Satin Shoes: Nude pointed-toe heels Bag: Small black structured clutch Jewelry: Simple stud earrings, delicate bracelet Formula 3: Soft Summer Formal Dress: Anais Powder Blue Maxi or Floria Soft Pink Maxi Shoes: Silver block heels Bag: Metallic or pearl clutch Jewelry: Pearl earrings or layered thin chains Formula 4: Bold Jewel Tone Dress: Lily Merlot Maxi or Evarine Wine Maxi Shoes: Nude or black heels Bag: Velvet or satin clutch in matching tone Jewelry: Gold statement earrings Silhouettes That Work Best for Black Tie A-Line Gowns A-line is universally flattering and always reads as formal