White to a friends wedding?

Hmmm well you may want to find out what the bride is wearing because if the wedding is not going to be fancy and she is not going to have on a normal wedding gown you defiantly dont want to have a dress that is as fancy as the brides. So if her dress is floor length and a formal gown, then yes you can wear it. However if you're not sure about her dress then you might want to find something different.