Today's tip is not just an attire tip, but it also touches on overall wedding design and colors.
Many people worry that if they wear ivory and have white tablecloths or white chairs, that somehow their dress will look "dirty" or yellow in contrast. I have not found this to be the case, and am sharing a few photos I have gathered from my personal files, and also courtesy of Heather Sharpe at A Sharpe Occasion , that show some examples to set your mind at ease. Yes, there will be contrast, but my opinion is that a tone-on-tone look can be stylish and charming.
Here's a photo of a bride in an ivory dress, amongst a cocktail hour with white tablecloths and chairs:
Finally, here's a photo of white tablecloths and ivory napkins and ivory underlays in a table setting:
Another question that comes up is if men in tuxes or dark suits should wear ivory shirts if the wedding gown is ivory. I've been told by many formalwear experts that the most sartorially correct choice with black tie is a white shirt. I couldn't find a super formal tux picture, but here's a very happy bride in an ivory gown with a groom in dark suit and white shirt. The difference in shade is almost undiscernable. (Click for a larger image)
That being said, if you just don't feel comfortable mixing it up, don't do it! You should be happy and at ease on your wedding day, not stressed about your style.