There's a new interior design trend circulating on TikTok, and you probably didn't see it coming. Enter: the "unexpected red" theory. Introduced by creator Taylor Simon ( @intayriors ) in a viral TikTok video , the unexpected-red theory is the idea of "adding anything that's red, big or small, to a room where it doesn't match at all, and it automatically looks better.

" Whether it's vibrant red pedestal sinks in a moody sage green bathroom or a red suede headboard against a purple accent wall, Simon suggests that the color is a foolproof addition to any palette. She even makes the case for red as a neutral. At first, that concept might seem surprising.

Red doesn't seem like the best color to refresh your bedroom with, and typically, neutrals skew more muted and subtle — light shades of white, cream, and gray, or dark variations of black, brown, and charcoal. In other words, they're universal colors that pair with anything. But with that logic, the unexpected-red theory might be onto something.

If red really looks good in every room, in any scenario, why shouldn't we call it a neutral, too? We asked a pro to weigh in. Ahead, interior designer Emma Beryl helps break down the unexpected-red theory and shares additional decorating tips on how to incorporate red at home. Emma Beryl is a New York City-based interior designer.

What Is the Unexpected-Red Theory? The unexpected-red theory is the idea that an added pop of red — in a piece of furniture, like a sofa , or a smaller acc.