Kate Middleton has just overlooked this fashion guideline with a color combination that I have always considered stylish.

      I’m in alignment with Catherine, Princess of Wales—some fashion rules are simply meant to be disregarded, and the outdated notion that black and navy should never be worn together is definitely one of them. Today, Kate showcased that such rules are irrelevant, donning a long-line coat in a luxurious royal blue hue layered over a dark black dress. Sticking to this elegant color scheme, she complemented the coat with a matching blue fascinator and slipped into soft navy suede boots. However, it was her subtle defiance of convention that took the look to the next level, as touches of black were thoughtfully incorporated into her outfit through her sophisticated dress and gloves. In one fell swoop, Kate illustrated how this deep, moody combination can add richness and dimension to a winter outfit.

      (Image credit: Getty Images) While conventional fashion “rule books” have often regarded this pairing as too heavy, I’ve always maintained that these equally rich colors exude a kind of understated opulence—chic and sleek, yet never overdone. And while Kate chose to incorporate just a hint of black, the combination can be equally striking when the two shades are more evenly balanced. Inspired by this underrated color combination, continue reading to discover and shop the most stylish black and navy items available now.

      Shop Navy and Black:

      Marks & Spencer

      Wool Blend Volume Sleeve Double Breasted Midi Coat

      Layer this over a black dress or pair it with a basic tee and jeans.

      With Nothing Underneath

      Cornwall Jumper

      I own this jumper and it’s one of my staples.

      With Nothing Underneath

      Rampling Trouser

      Crafted from warm wool, these will keep you cozy all winter long.

      Reformation

      Janu Linen Dress

      I’m already planning to wear this for the warmer months.

      Gianvito Rossi

      Pointy 55 Suede Knee-High Boots

      The pointed-toe design gives these shoes a sleek finish.

      Don’t miss them while they’re on sale.

      Mango

      Velvet Dress With Toggle Fastenings and Slit

      Pair with heeled pumps all party season long.

      Marks & Spencer

      Square Neck Midi Skater Dress

      Every great wardrobe begins with a little black dress.

      Marks & Spencer

      Straight Leg Trousers With Stretch

      Available in five different leg lengths, so you can find your ideal fit.

      & Other Stories

      Relaxed Knit Jumper

      During winter, I reach for a black knit almost every day.

      Explore More:

      Kate Middleton