casual denim midi dress Cache Button Down Designed to transition from casual days to event AE Strappy Tank Denim Midi

When in doubt, ask the couple or choose an alternative color from your wardrobe

Chelsea boots and leather lace-ups are the right footwear

Photo Credit: macys.com City Chic Trendy Plus Size Fancy Free Stripe Dress "Glam your cocktail look right up with the utterly romantic fancy free stripe dress

Matching beaded flowers flow over the waist and onto the long skirt that opens in a side slit that finishes the look of this light blue long prom dress that is ready for your grand entrance

If dresses arent your preferred style, a coordinated tunic and trouser set in a soft charcoal grey is a modern and highly respectful choice