We've known for years that Kate Middleton prefers a neutral polish, but this just in from the royal etiquette expert who once spotted her IRL at the nail salon: Her hue of choice is Essie's Ballet Slippers.
Yep, flashback to a handful of years ago, when Myka Meier, founder of Beaumont Etiquette, was living in London—just a block from Kensington Palace, in fact—when she happened into a nail salon and found she had a seat right beside the duchess.
Because inquiring minds want to know, she asked her nail technician: What is Kate Middleton's manicure color of choice? The answer was Ballet Slippers. Two coats.
And since we know Kate isn't really supposed to wear dark polish (except for the rare occasion she sports it on her toes), this checks out.