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.

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 cues 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.

Markle first broke the unofficial royal protocol when she stepped out bare-legged for her wedding announcement in November. Most royals typically wear pantyhose when they wear a dress to avoid showing some skin.

During her first public engagement of 2018, the former Suits star stepped out in London with her fiance Prince Harry with her hair tied up in a messy bun.

It is reportedly taboo for the royals to have their hair looking less than perfect, let alone having strands falling into their face.

The Duchess of Cambridge, Kate Middleton, is known for sporting a classic chignon when putting her hair up, and often wears a hairnet to ensure it stays flawless throughout her day.

The results of Meghan's hairstyle choice have people with mixed feelings.

"Love that Meghan Markle looks like she just chucked her hair up in a bun 2 minutes before she had to leave the palace. Relatable princess. I like it," one Twitter user wrote.

"The untidy topknot was not becoming. Ok these two need to grow up they aren't teens or in their 20's anymore. Harry is early 30's and Meghan is almost 40. She can't keep pushing the envelope, eventually the Queen is going to step in and take her to task. We need dignity," another tweeted.

The couple plans to tie the knot this coming May.

What do you think of her hairstyle choice? Should she have gone for something more tidy?

Source: Huffington Post