The outfits below are those the organisers publish or require, noted entry by entry. When an event does not appear here, its dress code has simply not been published: when in doubt, understated elegance is refused nowhere.
The most codified dress code in the world changes with the enclosure: formal (morning dress, hats) in the Royal Enclosure and Queen Anne, summer style encouraged in the Village, no requirement at Windsor. The full detail is on the page for Royal Ascot 2027.