Outfit ideas

Black tie dress code explained

Black tie is the most formal dress code most of us meet: dinner suits with bow ties, and evening gowns or very formal dresses.

By Style Finder · Updated 26 October 2026

In short

A dinner suit (tuxedo) with a black bow tie and a dress shirt is the standard.
Floor-length gowns are classic; very formal cocktail dresses are often accepted.
Polished black shoes or elegant evening shoes.
“Black tie optional” allows a dark suit and tie instead.

On this page

Dinner suit: a black or midnight blue jacket with satin lapels and matching trousers.
Dress shirt: white, often with a turn-down collar and studs or plain buttons.
Black bow tie: ideally one you tie yourself.
Shoes: polished black leather or patent shoes.
Gowns and dresses: floor-length is classic; a very formal dress, a dressy jumpsuit or an evening suit can also work.

Black tie is welcome, but a dark suit with a tie, or an elegant cocktail dress, is also fine.

Yes, and for a one-off event it often makes sense. Try it on in advance so you can fix the fit.

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