Some of Kate Middleton's most show-stopping outfits have been in fiery red, whether they're from designer labels like Alexander McQueen or high street stores such as Zara.
The colour is traditionally associated with love, so what better way to get in the Valentine's Day spirit than by taking inspiration from some of the Duchess' best bold looks? And some of them are much more casual than you may expect…
PHOTOS: 9 royal red-carpet looks for ultimate bridal inspiration: Kate Middleton, Princess Diana and more
Prince William's wife's kept it casual during a visit to Peterley Manor Farm in Buckinghamshire – we love her red puffer jacket by Perfect Moment!
In January 2020, Kate wowed us all in this glittering midi dress by high street brand Needle & Thread!
© Photo: PAThe Duchess of Cambridge was a stand out in a red gown by Jenny Packham during the annual Diplomatic Reception at Buckingham Palace in December 2016. The Duchess finished off the elegant look with Princess Diana's Cambridge Lover's Knot Tiara.
Looking for a statement coat, pretty skirt or warm scarf? Take inspiration from Kate's bold red outfit during her royal train tour of the UK in December 2020. She recycled her pleated tartan Emilia Wickstead skirt with her Alexander McQueen red coat.
SEE: 14 times the royals looked loved-up in public ahead of Valentine's Day
Who can forget the royal's ruby red frock she wore to film a festive TV special with Mary Berry for the BBC? Kate’s dress from Alessandra Rich featured long sleeves, a fitted waist and a pussybow tie, and instantly became a huge hit with royal fans.
During her royal tour of Sweden and Norway in 2018, the Duchess – who was pregnant with Prince Louis at the time – stunned wearing a stylish red and white coat by Catherine Walker.
© Photo: Getty ImagesKate was radiant in red as she joined husband Prince William and her brother-in-law Prince Harry for an engagement in London in 2017. The Duchess wore a new Giorgio Armani suit including a red fitted jacket and a co-ordinating red dress.
MORE: Valentine's Day ready! When royal ladies wear ravishing red dresses
© Photo: PAOn the 3rd day of the Cambridges' 2016 Canada tour, Kate stunned in a $1250 Preen gown as she attended a reception at Government House in Victoria.
© Photo: Getty ImagesKate may have added a new designer to her already impressive wardrobe with this pretty Marchesa Notte creation, but she relied on one of her favourite colours for her evening out in April 2017.
Another fantastic Alexander McQueen moment for the royal during a 2015 Christmas party at the Anna Freud Centre in London.
Photo: Anwar Hussein EMPICS Entertainment
READ: Kate Middleton's noughties Uggs are back in style and in the sale
© Photo: PAA pop of colour goes a long way. The Duchess of Cambridge opted for a red hat featuring maple leaves by Sylvia Fletcher for Lock & Co during a July 2011 visit to Canada.
© Photo: Getty ImagesWhile in Berlin on a royal tour of Germany with Prince William, Duchess Kate wore one of her most romantic red looks ever –an off the shoulder ankle-length Alexander McQueen dress with ruffle details.
Duchess Kate proves red is a colour you can do anything in! Wearing her Luisa Spagnoli suit and high heels, the royal took part in a game of cricket during the 2015 Cricket World Cup in Christchurch, New Zealand.
Photo: Anwar Hussein EMPICS Entertainment
Another designer fave, Catherine Walker, as Kate visited the East Anglia's Children's Hospices appeal launch in Norwich, England.
Photo: Anwar Hussein EMPICS Entertainment
PHOTOS: Royals in tartan: 15 times Kate Middleton, Duchess Camilla and more looked perfect in plaid
© Photo: PAThe Duchess looked gorgeous in a bright red Carolina Herrera coat while visiting the MacBride Museum in Whitehorse, Canada in September 2016.
© Photo: PAKate made a fashion-forward statement in this white Alexander McQueen dress with crimson details. She accessorised with red heels and a matching clutch for the visit to the Kitsilano Coast Guard Station in Vancouver during the royal tour of Canada.
© Photo: PAThe Duchess of Cambridge opted for another Alexander McQueen ensemble, this time with nude heels and clutch, during her royal tour to India and Bhutan with Prince William in April 2016.
Kate stood out in a poppy print gown by Beulah London at a reception in Thimpu, Bhutan in April 2016.
SEE: The Duchess of Cambridge's most show-stopping tiaras revealed
© Photo: PAThe Duchess of Cambridge rocked skinny jeans by Zara to play hockey with Great Britain's team at the Riverside Arena in London's Olympic Park.
During her visit to Scotland in 2014, Duchess Kate gave a nod to local talent by wearing the Athena wool jacquard coat by Scottish designer Jonathan Saunders.
Photo: Albert Nieboer/NETHERLANDS OUT
In April 2016, Kate rocked a floaty print maxidress designed by Glamorous while visiting a center for homeless children in New Delhi.
© Photo: PADuchess Kate sported a cable knit red sweater by the brand Really Wild for her fishing trip in Haida Gwaii, Canada in October 2016.
Kate went graphic in a red and white tweed top and matching A-line skirt from Eponine London's spring/summer 2016 collection, along with black heels and a clutch.
Photo: Doug Peters Doug Peters/EMPICS Entertainment
MORE: 15 best women's puffer jackets to keep you super warm - and on trend - this winter
The Duchess was Valentine's Day ready wearing a double-breasted twill blazer by Philosphy Di Lorenzo Serafini for her visit with the RAF Air Cadets at RAF Wittering in Stamford, England.
Photo: Samir Hussein/Samir Hussein/WireImage
