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Why you'll never see Duchess Kate wearing colorful nail polish

There's one thing that former Kate Middleton, Duchess of Cambridge never wears in public.
/ Source: TODAY

Catherine, Duchess of Cambridge is a style icon who isn't afraid to wear bold, beautiful colors. We often spot her in eye-catching shades of royal blue, forest green and crimson red.

When it comes to her nail polish, however, the duchess is all neutral, all the time.

We’re often too obsessed with her gorgeous outfits and flawless blowouts to notice, but you'll see it’s true: Whenever the former Kate Middleton steps out in public, she wears clear or nude polish.

Duke & Duchess Of Cambridge
Catherine, Duchess of Cambridge attends the Charities Forum Event at Paddington Station on Oct. 16.Getty Images

Why, you might ask? Kate is following in the footsteps of Queen Elizabeth, who has sworn by the same pale pink, drugstore nail polish for decades. There seems to be an unspoken royal rule that women only paint their nails in subtle, neutral hues.

Truth be told, the Queen could secretly wear wacky nail colors underneath her ladylike gloves, but we highly doubt it!

Image: Queen Elizabeth II and The Duke And Duchess Of Cambridge Visit The East Midlands
Queen Elizabeth II likely sported her go-to neutral nail polish underneath her white gloves at this children's sporting event in 2012.Getty Images

And while Kate could potentially be painting her fingernails black or hot pink in the privacy of her own home, we’re guessing she's not a big fan of statement nail colors. Her sophisticated and understated sense of style has become her signature.

Duchess of Cambridge
Subtle manicures seem to fit Kate's style.Getty Images

In fact, her subtle manicures are the perfect, neutral backdrop to complement her famous sapphire-and-diamond engagement ring, which originally belonged to Princess Diana.

Duchess Kate engagement ring
Left: Prince Charles and Princess Diana embrace for an informal portrait on their wedding day, July 29, 1981. Prince William and Catherine, Duchess of Cambridge pose in an official engagement portrait on November 25, 2010.Reuters

Besides, there’s no need to draw attention to your nails when your main accessory is, you know, a tiara.

Catherine Duchess of Cambridge
Kate attends a diplomatic dinner at Buckingham Palace in 2016.Tim Rooke/REX/Shutterstock

We may not have access to priceless palace jewels, but Duchess Kate’s classic manicures are one royal-approved look we're happy to try out ourselves!

Duchess Kate's royal style

Slideshow  172 photos

Duchess Kate's royal style

Catherine, Duchess of Cambridge, wears everything from fancy hats to casual tank tops. See how Prince William's wife can easily go from a high society affair to shopping on the streets of London.