Queen Elizabeth II is known for her brightly-colored royal fashion. As there is a particular reason why she wears the color blue so often and why she holds her purse a certain way, there are also additional hidden meanings behind the choices she makes regarding her attire.

According to the New York Post, Her Majesty, 93, intentionally chooses certain colors and outfits to convey her secret thoughts. Journalist Sali Hughes outlines this premise in her new book, "Our Rainbow Queen: A Tribute to Queen Elizabeth II and Her Colorful Wardrobe."

"What she cannot overtly say with language, she secretly says with clothes," Hughes revealed.

READ: Queen Elizabeth II Granted Prince William Unique Permission To Do This Unexpected Thing

As for how her fashion choices are viewed by outsiders, Hughes stated to The Post that "many mature women are encouraged to dress so they step into the background, but not this very strong woman at the helm of the UK."

The process by which the Queen chooses her eye-catching outfits has also been a source of fascination for royal watchers, but secrets are set to be revealed when a new book debuts this month. Written by Angela Kelly, one of the monarch's closest advisers, fans will gain insight regarding how Her Majesty goes about choosing those statement-making outfits.

Sending a message through royal fashion is something that Meghan Markle has seemingly picked up on herself. On her recent royal tour of Africa with Prince Harry, the Duchess of Sussex opted to forgo her engagement ring in order to make a "powerful message," while she also gave a subtle nod to her life outside of the British royal family by making another fashion choice.

Queen Elizabeth II
Queen Elizabeth II is seen at the Chichester Theatre while visiting West Sussex on Nov. 30, 2017, in Chichester, United Kingdom. Getty Images/Stuart C. Wilson