For years, Kate Middleton’s fashion choices have been a masterclass in polished, princess-perfect style. But her look on March 15 at the Six Nations match in Cardiff? A quiet departure from the norm—one that signals a shift in how she’s approaching fashion altogether.

Most fashion enthusiasts know how mixing navy blue with black is often frowned upon. But maybe this rule was meant to be broken? None other than Kate Middleton proves this right. , Fashion News - Time

There are a few fashion rules that pretty much everybody can recite verbatim. No white after Labor Day. Always match your belt with your bag. And, of course, never, ever mix navy and black. Although these rules may sometimes make sense, they were also made to be broken. And Kate Middleton just reminded the world why.