At a formal rehearsal dinner, guests should wear a little black dress or gray suit while an informal dinner dictates jeans and a dress shirt or a skirt and fitted top. Guests should check the invitation to determine the proper dress for the dinner. If the wording is ambiguous, guests can check with the bride or groom for guidance.
Rehearsal dinners are usually hosted by the groom's family on the eve of the wedding. Proper attire for the dinner is dictated by the venue in which it is held. For example, if the dinner is at a hotel or fancy restaurant, then formal dress is appropriate. Dinners taking place at a bar, casual restaurant or someone's home call for more casual attire.
For a formal rehearsal dinner, women cannot go wrong with a traditional little black dress. Accents such as a colorful necklace, bangle bracelets or red shoes add just the right touch. Men should wear an understated and classy suit in navy or charcoal gray. A silk tie is perfect for adding a splash of color.
There is more leeway in an informal rehearsal dinner. Women are safe wearing capri pants and a fitted shirt or skirt and casual top. Dressy sandals or flats are appropriate. Jeans are acceptable for men as long as they are paired with an Oxford shirt and loafers. Khakis work well also.