The largest difference is that a tuxedo is not required for formal attire but it is often optional.
Dark grey suit wedding guest.
Most men who know how to dress avoid black suits.
Sure as long as you don t care what is stylish and what is not or the bride and groom have a permissive dress code for the wedding and really don t care what you wear.
In that case a dark suit and tie would be acceptable black tie optional wedding attire for men but wear a tux if you can.
Instead of wearing a black or midnight tuxedo consider wearing a black or dark colored suit.
Do wear a dark suit or tuxedo for a formal wedding dark suits ex.
Black charcoal grey midnight blue are most appropriate.
Another popular dress code for wedding is cocktail attire it basically means you have a dark suit or suit has little sparkle or something special a little more of a pop of color a little louder than the business suit and you can wear a dress shirt you can wear a tie something that is still formal but just with a little more fun.
If they somehow accidentally.
You can get away with a more relaxed outfit here but it needs to look polished you re still at a wedding after all.
You could wear some well fitting dark denim sans rips please.
It s also a winner at winter weddings.
You can dress it down though try a black satin necktie or a black and white bow tie in a pattern.
Dark gray tuxedos or charcoal gray suits are perfect for formal weddings and evening weddings.