The body language expert also highlighted the significance of Princess Kate's turquoise coat dress, saying, "It is the color of tranquility, of protection, it denotes healing. The white that's included in her outfit is a significant color. It's, again, tranquility and peace, cleanliness and neutrality."

The annual official celebration of the monarch’s birthday is always a moment for the Princess of Wales to show off her sartorial instincts. This year, she made a bold and bright statement.