White Tie, Black Tie and Morning Dress: Royal Dress Codes Decoded
An invitation that says nothing but a dress code can say everything. Here is what White Tie, Black Tie and Morning Dress actually require, royal style.
Royal invitations rarely explain themselves. A single phrase in the corner, White Tie, Black Tie or Morning Dress, quietly sets an entire evening or afternoon’s wardrobe, and getting it wrong is a genuinely visible mistake in a room full of people who got it right.
White Tie: the most formal code that exists
White Tie, also called full evening dress, sits at the absolute top of Western formality. For men, it means a black tailcoat, a white piqué waistcoat, a starched wing collar and a white bow tie; for women, a full-length evening gown, generally accompanied by the most significant jewellery a family owns, gloves, and, where entitled, a tiara. State banquets and the grandest royal evening occasions are the settings where White Tie still genuinely appears.
Black Tie: formal, but a step down
Black Tie, familiar to most people from weddings and formal dinners outside royal circles too, is a semi-formal evening code, a step below White Tie’s full ceremony. It typically permits, among royal women, either a full-length gown or, increasingly, a well-tailored trouser suit, a flexibility White Tie does not extend.
Morning Dress: formality for daylight hours
Morning Dress is the most formal Western dress code for daytime, consisting for men of a morning coat, waistcoat and formal striped trousers, paired for women with a smart, occasion-appropriate dress or coat and a hat. It appears at royal weddings, Royal Ascot, and state occasions held during daylight hours, functioning as daytime’s answer to White Tie’s evening grandeur.
Orders and medals carry their own meaning
At the most formal royal evening occasions, sashes, badges and family orders worn across formal dress are not decorative extras; each represents a specific chivalric honour or royal appointment, from the Order of the Garter to family orders bestowed personally by the monarch, adding a layer of institutional meaning that a plain reading of “formal evening wear” doesn’t capture.
Military uniform at royal weddings
Royal men holding a military rank or an honorary regimental colonelcy frequently marry in uniform rather than civilian formal dress, a choice governed by their own service rather than a fixed dress code. Prince William, for example, wore the uniform of the Irish Guards at his 2011 wedding, reflecting his honorary colonelcy of the regiment rather than a personal style choice.
The monarch signs off on the bride’s dress
For royal weddings specifically, the reigning sovereign formally approves the bride’s dress design before the day itself, a step that sits alongside the more visible dress-code questions of what guests should wear. It’s a reminder that even the most personal element of a royal wedding, the dress at its centre, passes through at least one layer of institutional approval before it’s ever seen in public.
Browse more of our Royal Style & Fashion stories for more of the codes behind royal formal dress.
Frequently asked questions
What is the White Tie dress code?
The most formal Western evening dress code: a black tailcoat, white waistcoat and wing collar for men, a full-length evening gown for women, generally worn only at the grandest state occasions.
What is the difference between White Tie and Black Tie?
White Tie is more formal, requiring a tailcoat and specific accessories. Black Tie is semi-formal, generally permitting a dinner jacket for men and, for women, either a gown or a tailored trouser suit.
What is Morning Dress?
The most formal daytime dress code, consisting of a morning coat, waistcoat and formal trousers for men, worn at royal weddings, Royal Ascot and daytime state occasions.
Why did Prince William wear a red military uniform to his wedding?
He wore the uniform of the Irish Guards, reflecting his honorary colonelcy of the regiment, a choice governed by military rank rather than the standard wedding dress code.
Does the King or Queen have to approve a royal wedding dress?
Yes. The reigning sovereign formally approves the bride’s dress design ahead of a royal wedding.
What do sashes and medals on formal evening wear actually mean?
Each represents a specific chivalric honour or royal appointment, such as membership of the Order of the Garter, rather than purely decorative additions.
Dress-code definitions are drawn from standard etiquette references and reporting on recent royal weddings; correct as of 2026.
