Dos and Don'ts
If you have to ask if it's appropriate, it probably isn't. Do use good judgment if the invitation doesn't specify the formality of the event.
Don't wear white because it competes with the bride. There are plenty of other colors available. This rule may seem outdated, but it's actually just good etiquette to not compete with the bride on her special day.
Don't worry about wearing the same colors as the bridesmaids or mothers. You can't possibly coordinate with everyone in the wedding party.
Clubwear, overtly sexy clothing (strapless, see-through, etc.) doesn't belong at a wedding. A pastel suit or soft floral dress for daytime or a little black dress for evening (after 6 p.m.) will take you almost anywhere.
Casual can mean a pretty sundress (like for a coastal or beach wedding) but rarely means something as sloppy as jeans or shorts.
The dresses shown today are available at David's Bridal