Kate Middleton's Most Stunning Blue Dress Moments

Kate Middleton knows what looks good on her. The Princess of Wales is one of the modern royal fashion icons for precisely that reason; wearing garments that suit you (based on your body type, complexion, and height) is a surefire way to put together a chic look. From Kate Middleton's Wimbledon outfits that we're still thinking about to Kate Middleton's most regal looks of all time, the royal and her styling team have made it clear that they have a strong grasp on Kate's elevated brand. The Princess is seldom seen breaking the royal family's strict style rules. In order to maintain her elegant public image, Kate's well-tailored ensembles for events and public appearances often feature soft shades of blue. 

While Kate Middleton's love of monochromatic looks may be a nod to Queen Elizabeth, her fondness for the color blue is uniquely her own. Over the years that she's been in the public eye, Kate has donned many dresses in different shades of the classic color. Whether she's attending Trooping the Colour or watching the finals at Wimbledon, Kate knows that the regal color suits her perfectly. We're taking a look at some of Kate's most stunning blue dress moments, giving further credence to the fact that the Princess of Wales practically owns the color.

Kate Middleton wore a retro coat dress inspired by her late mother-in-law Princess Diana

The Princess of Wales always stuns at Trooping the Colour, but her 2026 look stole the show. Kate Middleton gave one of Princess Diana's most iconic '80s looks a chic update with her sky-blue coat dress. Designed by Catherine Walker, Kate's dress had a white trim and strong shoulder pads, and it reminded royal fans of a very similar dress Diana wore in 1987 (which was also created by Walker). Kate's stunning blue dress had a retro energy that we're in love with. 

Kate Middleton stunned in cobalt blue for Easter 2023

One of Kate Middleton's most stunning looks comes from Easter 2023. The Princess of Wales looked beautiful in a monochrome ensemble consisting of a cobalt-blue dress, coat, and statement pillbox hat. This was a much bolder shade than the light and navy blues that Kate favors more often, and it's way more eye-catching than the sorts of pastel hues one usually sees at Easter. The blue coat was tailored perfectly to her figure, emphasizing the garment's high-quality. Kate's Easter look is certainly one of the royal's best blue ensembles of all time.  

Kate Middleton wore an elegant powder-blue coat dress for a 2017 event

Kate Middleton is the queen of the coat dress, and one of her most beloved 2017 looks proves as much. While attending an event commemorating the 150th anniversary of the Treaty of London, Kate was spotted wearing a powder-blue blazer-esque coat dress. The A-line cut of the dress gave princess energy, while the top half allowed Kate to look posh and professional for the ceremony. Light blue suits Kate incredibly well, so it's no surprise that she wears the shade so often.

Kate Middleton's striking dark-blue dress lives in our heads rent free

Kate Middleton knows how to put together a chic look. The dress she wore upon arriving in Canada for a royal visit in 2016 combined padded shoulders with a tight pencil skirt, which made Kate's otherwise retro look feel more modern. While the Princess of Wales typically opts for light shades of blue, this dress proves that dark blue suits her just as well (if not better). Kate topped off the monochrome look with a matching statement hat. 

Kate Middleton looked royally good at King Charles' coronation garden party

One of Kate Middleton's most iconic blue dresses is actually a repeated outfit. Kate rewore the dreamy Elie Saab dress she donned to the Royal Ascot in 2019 for King Charles' coronation garden party four years later. While the ensemble may not have been high on the list of Kate Middleton's Royal Ascot outfits ranked by timelessness, it is undeniably a stunning dress that suits the Princess of Wales perfectly. It's not hard to see why Kate recycled the beautiful ensemble years later. 

Kate Middleton channelled princess energy at Wimbledon 2019

Kate Middleton is an expert at dressing like a royal, and her 2019 Wimbledon look stands out as especially regal. Kate attended the men's final alongside Prince William, donning her favorite color for the match. The breezy dress featured elegant pleating, a scoop neckline, and cap sleeves. Combined with the pale-blue shade, Kate's entire ensemble screamed royal excellence. While this dress is simple in design, it is still one of the Princess of Wales' best-fitting garments.

Kate Middleton's polka-dot dress was perfectly posh

Kate Middleton loves a retro look, and her throwback styles never disappoint. For a 2019 outing, the Princess of Wales was photographed in a navy-blue dress with a stark-white collar and cuffed sleeves that looked effortlessly elegant and classic. The potentially moody color of the dress was brightened up with a preppy polka-dot pattern that gave it a vintage vibe. We wouldn't be upset if Kate replaced her preferred powder blue with a darker shade more often.