TikTok's 'Unexpected Red Theory' Works For Fashion & Beauty, Too: How To Apply It To Your Outfits

Red is a perennial fashion favorite. The color of love, passion, and confidence, we regularly see shades of red gracing runways and, appropriately enough, red carpets. Red is even the trendiest color of winter 2023/2024. That said, it's one thing to introduce red as the theme of your outfit by wearing staples like a red blouse or dress — these garments are easily matched with neutrals for an elegant but expected ensemble — and another altogether to use red in wild, unlikely ways. Enter TikTok's viral "unexpected red" theory. 

This concept, which made it big in a popular video by TikToker @intayriors with over 100,000 likes, is usually confined to interior design. "Unexpected red theory is basically adding anything red, big or small, to a room where it doesn't match at all, and it automatically looks better," creator Taylor Simon explains in the video. This involves using splashes of red alongside unusual patterns, textures, and color combinations to create a surprisingly harmonious finish. As Simon says, "I'm petitioning for red to be a neutral color because it just looks good with everything."

But why does red seem to work so well with everything, even against all odds and expectations? "It automatically updates it and makes it look so fresh," Simon adds. In essence, the very shock and contrast of unexpected red makes it look clever and chic — a trick that can be quickly and easily translated into your fashion.

When it comes to fashion, complementing your ensemble with a single counterpoint of solid red isn't just splashy — it comes across as edgy and intentional, elevating the whole look with a sense of daring style. That's why we love using the unexpected red theory for more than just interior design.

To get the effect yourself, you'll have to be a little brave and willing to juxtapose red pieces against atypical colors or patterns. For instance, you can take a nod from the color combos in Taylor Simon's interior design video by wearing vivid cherry with rich purple or weathered teal. Or, try setting off busy patterns like stripes or houndstooth with a solid dash of primary red. To keep things balanced, use the red shade in smaller amounts than the main color or print. This way, it serves as a jazzy accent rather than creating an overwhelming clash of hues.

Accessories are perhaps the easiest way to introduce a surprise pop of red into any outfit. Whether you're dressed head to toe in chic, monochromatic black or coordinating a riot of colorful patterns, try adding a focused point of pizzazz with a red handbag, a red belt, or a pair of killer red shoes. Bear in mind that this item doesn't have to match anything else. To expertly capture the vibe of the unexpected red theory, feel free to embrace Simon's suggestion and use red anywhere you might normally employ a neutral tone.

Another subtle yet potent way to sneak red into your outfit is through cosmetics. If you're nervous about going overboard with 'unexpected red,' beauty techniques are a perfect way to start small and ease into the trend — such as by rocking a fiery red manicure. In fact, red nails are so impactful that they've sprouted viral style theories of their own. TikTok's red nail theory suggests that, beyond looking timelessly fashionable, a vivid red manicure may help you attract admiration and romance.

Similarly, a classic red lip oozes confidence and can be worn with most looks. But, of course, red nails and lips aren't the most surprising beauty choice. For something more unlikely, consider trying the unconventional trend of red eye makeup to instill a twist of unexpected red into your everyday makeup. Warm, orangey red eyeshadow looks fabulous with an earth-toned ensemble, while scarlet eyeliner wings offer a sleek and adventurous accent to both bold and understated looks. If the red hue comes across as too flat or ruddy, just perk it up with a glowy touch of shimmer to add dimension and extra interest to the final look.