The Asymmetrical Neckline

Here are the basic rules to wedding guest attire:

Women should not wear white or ivory, even if the bride herself is wearing a different color. This doesn't mean your cheap wedding dresses can't have any white in it, but the dominant color should not be bridal.

Avoid wearing black or red if the bride or groom's family is traditional, or the wedding is being held in the South. Believe it or not, there was a time when black was seen not as a fashionable color, but as a color of mourning -- and wearing black to a wedding indicated disapproval of the union. Remember the scene in Gone with the Wind where Rhett Butler forces Scarlett to wear a red bridal  dress to a party? That's because red was seen as a scandalous, attention-getting color. Some people see wearing red to a wedding as a bid for attention on a day when all attention should belong to the bride.

When in doubt, go low key. Avoid wearing anything that has a low cut, is too short or is otherwise out of sync with the couple and their guests.

Avoid wearing the same color as the bridal party, if possible. Don't go out of your way to find out those colors, but if you by chance know them, avoid wearing them so you don't seem like you're trying to shoehorn your way into the wedding party.