Unless told otherwise that the wedding is more relaxed and a tie is optional, wear the tie! ... Now if it isn't your wedding, you're unsure of the style of the wedding, the attire or just would prefer not to wear a tie, the best advice is ask the groom or even the best man. Then you can't go wrong!
- Should you wear a tie with a suit at a wedding?
- Do you have to wear a tie to a formal wedding?
- Do grooms have to wear a tie?
Should you wear a tie with a suit at a wedding?
It depends on the occasion, however the answer is generally no. Not wearing a tie with a suit, would be like not wearing socks with your shoes or not wearing cuff links with your cuffs! The suit is designed for the tie and would be lost without it.
Do you have to wear a tie to a formal wedding?
Formal or Black-Tie Optional
So, a tuxedo isn't required, but the event is still formal enough for one to be appropriate. The choices are the same as with black-tie: a floor-length gown, a fancy cocktail dress, or a dressy pantsuit.
Do grooms have to wear a tie?
Answer: The groom can most certainly wear a necktie or bow tie that is a different color than the ones that the groomsmen will be wearing. As you mention, white (and also ivory/off-white) are often popular for grooms because those colors typically complement the bride's gown.