The Princess of Wales appeared to show a darker hair shade while cheering England at Saturday’s Women’s Rugby World Cup pool A match in Brighton, but hair stylists told the Daily Mail the change was down to styling and lighting rather than a fresh dye.

Observers at the Brighton & Hove Albion stadium and on social media noted that Kate, 43, looked closer to her usual brunette in a sleek half-up, half-down style for the evening match between England and Australia. Some fans wrote that she looked "gorgeous" and others called her "the most famous brunette on the planet." Stylists who spoke to the Daily Mail said the princess’s hair retained the golden tones first seen earlier in the week at the Natural History Museum, where she had worn her hair down in softer waves that caught brighter indoor light.

Celebrity hairstylist Adem Oygur said it was "very normal for hair to look different depending on lighting and styling," noting that an outdoor stadium’s dimmer, cooler lighting and a sleeker, pulled-back style naturally make hair appear darker and more uniform. He pointed to post-match photos taken under brighter lights in which Kate’s golden tones re-emerged, and described the half-up look as a "smart and practical" choice for a high-energy evening event — polished, comfortable and fuss-free in a crowded stadium.

Veronica Wysocka of Hershesons suggested the princess may have "slightly toned down" the blonde after a colour change, which is a common adjustment, but agreed that the apparent shift could be explained by how the hair was styled and which sections were visible. "Her hair is also put up so we mainly see her face frame being more brunette while the ends are still quite bright," she told the Mail, adding that hair colour is "a multidimensional creation" that can vary with lighting and styling.

Earlier in the week, the Princess of Wales and her husband, Prince William, visited the Natural History Museum in London, marking their return to official engagements after the summer break. At that engagement she was seen with paler, sun-kissed waves; stylists and commentators linked the change to a summer holiday reportedly spent sailing in the Greek islands. The Daily Mail previously reported that the family spent time in the Ionian Sea and that Kate’s hair appeared lighter after the trip, with one stylist noting that sun, sea air and saltwater can gently lift hair colour and reduce the need for chemical processing.

At the Brighton match, the princess met players from both England and Australia and visited locker rooms to congratulate teams after the game. Photographs from those moments showed the warmer tones returning under different lighting, supporting stylists’ explanations.

The Princess of Wales has frequently varied between a trademark bouncy blowout and more structured styles for different occasions. Commentators and stylists have noted that in recent years she has pursued a lower-maintenance approach to colour that allows for blended, lighter tones to soften the appearance of greying and require less frequent touch-ups.

Fashion details from Thursday’s museum appearance were noted in media reports: Kate wore a fitted tweed blazer, dark green tailored trousers and tassel loafers, and accessorised with a small initial necklace and family heirloom jewellery. Those reports also cited the couple’s traditional summer break and social-media response to her changing looks.

The accounts of the hair change drew attention in part because the princess’s style has been a consistent element of her public image since before she became a senior royal. Stylists said the Brighton look demonstrated versatility — shifting from a radiant, flowing glamour at the museum to a sleek, sporty elegance at the stadium — while maintaining a polished, appropriate appearance for each setting.

All comments on the apparent change in shade made to the Daily Mail came from hair professionals and were framed around observable factors such as light, camera flash, and hairstyle rather than confirmed changes in colour treatment.