Black Tie Attire for Women and Men: What to Wear and What to Skip

Black tie is evening formal wear built around the dinner jacket, which Americans call the tuxedo. Wikipedia's Black tie article traces the tailless evening jacket to the 1860s, and the American name to Tuxedo Park, New York, where young men wore it in 1886. By the Edwardian era a black vest and black bow tie had become the convention, and that is the outfit the code still describes. It sits one step below white tie and one step above black tie optional. The Emily Post Institute calls it common for weddings, formal dinners and the theater. Wikipedia notes it is traditionally worn after 6 p.m., and that etiquette writers consider it unusual before then. The word "black" refers to the man's bow tie, not to the color anyone has to wear. Women can wear any color that suits an evening event.

Emily Post lists three outfits for women, and the order is worth keeping: • A floor-length evening gown. This is the reference outfit and never wrong. • A dressy cocktail dress. • Your dressiest little black dress. The second and third options carry a qualifier that matters: dressy, and dressiest. A cocktail dress you would wear to a semi-formal party is not automatically black tie. What lifts it is fabric and finish: satin, silk, velvet, beading, sequins, a structured cut, a hem that sits at the knee or lower. A knit wrap dress or a printed cotton midi stays in the semi-formal column however you accessorize it. A practical test: put the dress next to the floor-length gowns you expect in the room. If it looks like a quieter cousin of those gowns, it works. If it looks like something for an office party, it does not. Trousers sit in a gray zone. Emily Post's black tie list does not include separates (it adds dressy separates only at black tie optional). Wikipedia notes that in England palazzo-cut evening trousers are an acceptable option, and that Yves Saint Laurent's "Le Smoking" dinner suit for women dates from 1966. A tailored evening trouser suit in a formal fabric will look deliberate; casual trousers will not. If the event is strict, the gown is the safer call. For dresses that fit the list, see our black tie wedding guest dresses.

Emily Post's list for men is a black tuxedo jacket with matching trousers, a formal white shirt, studs and cufflinks, a black bow tie in silk, satin or twill, a matching cummerbund or vest, optional dress braces, no gloves, and black patent shoes with black socks. Wikipedia's article fills in how each piece is cut: • Jacket: black or midnight blue, usually single-breasted with one button, with peaked or shawl lapels faced in satin or grosgrain. • Trousers: no cuffs, a single braid down the outer seams, held up by braces rather than a belt. • Waist: a low-cut vest or a cummerbund, not both. • Shirt: white, turndown collar, a pleated or marcella front, double cuffs. • Bow tie: black, self-tied, matching the lapel facings. • Shoes: black patent pumps or plain-toed oxfords, no brogueing. • Pocket square: white is traditional. If you rent, these are the details to check at the fitting: the lapels are faced, the trousers have the side braid, the shirt takes studs, and you have been given a bow tie rather than a long tie. Emily Post allows one seasonal swap: in summer, in the tropics or on a cruise, a white dinner jacket with black tuxedo trousers is acceptable. Wikipedia notes that this jacket is usually ivory rather than pure white.

These three get used as if they were interchangeable. They are not, and the difference falls almost entirely on men. Black tie: a tuxedo is required. Emily Post's wedding-guest page states it directly: when the invitation says black tie, a tuxedo is required. Black tie optional: Emily Post lists a tuxedo, or a dark suit with a white dress shirt, a conservative tie, leather dress shoes and dark socks. Women gain one option, dressy separates. Our black tie optional guide covers that code case by case. Formal: Emily Post's attire guide has no separate "formal" rung. Its wedding-guest page describes formal evening weddings as a long evening dress or dressy cocktail dress for women, depending on local custom, and a tuxedo or a dark suit for men. In practice a "formal" evening invitation behaves like black tie optional. For women, the three codes overlap almost completely: a floor-length gown works at all of them. The one change is that at strict black tie the cocktail dress needs to be at its dressiest.

Black tie is an evening code. If a black tie invitation names a start time well before 6 p.m., the hosts still mean black tie, but the room may lean toward the cocktail-dress end for women. Men's dress does not change: the invitation still asks for a tuxedo. Season affects fabric more than form. Velvet, heavy satin and long sleeves suit winter; chiffon, crepe and lighter silks suit summer. For men, summer and warm-climate events are where the white dinner jacket becomes an option. Venue is the variable people underestimate. In our Reddit analysis (method in the next section), 160 of the 1,307 Black/White Tie posts, 12.2%, mention an outdoor setting such as a garden, beach, barn or vineyard. On grass and sand, a floor-length hem collects dirt and stilettos sink. Choose block heels or wedges, a hem that clears the ground in your shoes, and a wrap for a cool evening. Men should think about heat: the white dinner jacket exists for exactly that situation. Emily Post's wedding-guest page also lists religious and local considerations: whether bare shoulders or open-toed shoes suit a religious ceremony, whether head coverings are expected, and whether the region is more conservative.

In our analysis of 10,700 posts on r/Weddingattireapproval (16 April – 21 October 2026), we searched each post's title and body text for a set of keywords and counted each post once per topic; posts that are only a photo carry no body text, so every count is a floor, not a ceiling. Of the 1,307 posts the forum files under Black/White Tie, these are the topics that come up most: • 503 (38.5%) ask about a color. • 369 (28.2%) are about black tie optional rather than strict black tie. • 292 (22.3%) mention a gown, a floor-length dress, a maxi or a long dress. • 163 (12.5%) concern men's attire: a husband or boyfriend, a tuxedo, a suit or a bow tie. • 160 (12.2%) mention an outdoor setting. • 70 (5.4%) worry about being underdressed, against 25 (1.9%) who worry about being overdressed. • 47 (3.6%) mention a cocktail-length, midi or knee-length dress. Two conclusions follow. First, color and length cause more doubt than the code itself, which is why this page covers them. Second, guests worry about underdressing nearly three times as often as overdressing. At black tie the room skews formal, so the gown or the tuxedo is the low-risk choice.

A black tie wedding uses the same garment lists, plus the wedding conventions that apply at any formality. For women: • Avoid white, ivory and anything that photographs as white next to the bride. Our wedding guest dress colors to avoid guide covers the borderline shades. • Black is fine at an evening black tie wedding; see can you wear black to a wedding for the exceptions. • If the ceremony is in a house of worship, bring something to cover bare shoulders for the service. • Plan for a long evening: shoes you can stand and dance in, and a hem you will not trip on. For men: • Wear the tuxedo. Emily Post is explicit that a black tie invitation requires one. • Keep it classic unless the couple asks otherwise. Novelty bow ties and colored jackets belong to creative black tie, a separate code Emily Post describes as keeping the black tie foundation while allowing colors and textures. • If you are in the wedding party, the couple's choices override this page.

Renting is the standard answer, and it is normal. A full rental covers the jacket, trousers, shirt, bow tie, cummerbund or vest, and often the shoes and studs. Allow time for a fitting. Buying makes sense if you expect several black tie events in the next few years. A black or midnight blue jacket in a classic cut does not date quickly. What about a dark suit? Wikipedia notes that some settings, such as cruise-line formal nights, accept a dark suit as a substitute. A wedding that says black tie is not one of those settings unless the hosts say so; Emily Post's wedding-guest page says a tuxedo is required. If you cannot get one, tell the couple and ask. If they say a dark suit is fine, wear a black or midnight navy suit, a white shirt, a black bow tie or a dark solid tie, and black shoes, polished. Do not arrive in a suit without asking and hope nobody notices.

Most black tie mistakes are small, but they are the details people notice: • A long necktie with a tuxedo. The code is in the name: a black bow tie. • A belt with tuxedo trousers, or a vest and a cummerbund worn together. • A cocktail dress that is merely nice rather than dressy. Fabric decides this more than length. • White or ivory on a female guest at a wedding. • Treating "black tie optional" as "black tie" or the reverse. One requires a tuxedo; the other welcomes it. • Brogues or loafers with a tuxedo, rather than patent or plain black oxfords. • Ignoring the venue: a long hem in wet grass, stilettos on a lawn. For where black tie sits among all the codes, see our wedding dress codes explained hub.