You can not wear white to a wedding?

Ok, I'm going to a wedding, and everything I do a cocktail dress … UN his wife very similar, but the rest / ivory in tone. It has black lace detail, and I will put a shrug, black lace, too. Is it OK if I wear? My gut tells me yes, I do not want to hang one in the procession. Thanks!

The best approach is that if you think it might even be an opportunity for something of a conflict, not having to do – what I'm going to use something that will certainly not be a problem, not something that has a chance to be a problem, if only a small chance.