When you're a member of the royal family, there's a strict guideline on how you're supposed to present yourself.
From how you accessorize your outfit to which brand names you wear, everyone has all eyes on the royals when it comes to their fashion choices.
The royals have many fashion protocols to follow, including not wearing colorful nail polish, showing cleavage and wearing wedge shoes in front of the Queen.
But occasionally they make slip ups.
Not even the the Queen herself is flawless when it comes to attire. In December, she accidentally matched her guests, Nigerian High Commissioner George Oguntade and his wife Modupe Adewemimo, when they arrived for a meeting at Buckingham Palace.
Today at Buckingham Palace, The Queen received and held an audience with the High Commissioner from the Federal Republic of Nigeria, His Excellency Mr George Adesola Oguntade. Her Majesty also received and held an audience with His Excellency Mr Rami Mortada on his appointment as Ambassador from the Lebanese Republic. 📷PA
The trio all wore a similar vibrant purple attire, which is a color that has been long associated with royalty.
And the color coordination didn't go unnoticed.
"Same colours... is that an Oooops?" one person comment on Instagram.
"I love the color coordination. Beautiful," another commented.
Princess Diana, Harry's late mother, was known for breaking royal protocol and disregarding the rule to wear gloves in public. She felt like the accessory made interactions less personal and opted not to wear the garment.
"She liked to hold hands when visiting people or shake hands and have direct contact," Eleri Lynn, the curator of a fashion exhibition on Princess Diana, told Hello magazine. "She also stopped wearing hats because she said, 'You can't cuddle a child in a hat.'"
The newest addition from the royal family could be taking queues from Diana.
While she isn't becoming a part of the royal family until later this year, Meghan Markle isn't letting the rules slow down her style.