For the groom, selecting his attire depends on the formality of the ceremony. A formal or semi-formal wedding requires the groom to wear a tuxedo or suit, and it can be black, white, or gray but should be smart. And NO! smart does not include leaving the tag on the sleeve gentlemen.
Tuxedos can be reserved/rented, but it is a better idea to have them custom-made to make sure there is a perfect fit. This can be more expensive but you will ensure a great look not to mention great compliments from the guests.
Remember the bride is the star of the show but you are her consort - it's best to look the part on her special day.
A casual wedding requires the groom to wear a smart shirt, it can be pink (yes pink!) striped, black, white, or gray but should be smart. He can wear linen pants or chinos and a comfortable casual shoe to compliment his outfit. Check out www. gantuk.com or www.jcrew.com (my favorites) to create a trendy, classically preppy wedding look.
These Gant Guys agree "real men wear pink"!!!!!!!!!!!!!!