Have you and your bestie ever worn the same lipstick shade and noticed that it looked completely different on both of you? Maybe you're the same complexion as your sister, but her foundation doesn't quite match your skin tone. If you've ever run into this dilemma, it's all due to a little thing called undertones. Your undertones are just as unique as you are, and they determine which shades will look more vibrant on your skin than others. There are tips and tricks to determine your undertone, but a skin tone quiz can help you figure out which makeup hues match best with your skin tone, too.

But first, let's break down the basics. Undertones are different than your skin tone — although they're often confused. Ron Robinson, cosmetic chemist and founder of skincare brand BeautyStat, says, "Skin tone is the color of the surface of your skin, and your undertone is the more subtle color beneath the skin’s surface. Your skin tone can change when exposed to the sun or if it is experiencing acne or melasma, but your undertones remain more constant."

What are the different undertones?

There are three temperature-hue undertones. Warm undertones have "warmer colors — golden, peach, or yellow," celebrity makeup artist Sarah Egan says. Cool undertones have "cooler" hints like pink, red, or slightly blue, while neutral tones have a mix of both warm and cool colors.

Along with temperature-hue undertones and skin tones (which may be described as fair, medium, or deep), there are also surface-level skin overtones that change seasonally and can shift when your skin is dry or irritated.

Julie Pefferman, a cosmetic chemist and beauty brand consultant, explains, "Things like melanin, skin thickness, the oxygenation of blood vessels directly under [the] skin, skin irritation, and skin dryness can all impact the composite skin tone."

How do you determine your skin's undertones?

The best way to figure out which undertone you have is to take a look at the veins on your wrist."If they look blue, you have a cool undertone," Egan explains. On the other hand, if you notice green veins, then you have a warm undertone. If you notice hints of blue and green, then Egan says, "your undertone is neutral."

When looking for a foundation or concealer that correctly matches your skin tone and your undertones, Pefferman suggests narrowing it down to three to four potential shade matches for your skin tone and then trying those shades directly on your face without rubbing your face too much when applying to avoid irritation-based redness.

If you've taken a look at your wrist and still can't determine your skin's undertones, take this skin tone quiz to find out what your undertones are.

If you answered mostly with the left column…

celebrities with cool undertones, skin cool undertones, duckie thot, madelaine petsch, cara delevingne
Getty Images
Madelaine Petsch, Cara Delevingne and Duckie Thot all have cool undertones.

You have cool undertones! Whether your skin tone is more fair or deep, your skin has pink or red undertones. Pefferman recommends wearing jewel tones like emeralds, deep purples, lavender, pink, ice blue, and bright blues for your clothing and makeup. When choosing a foundation or concealer, look for neutral or pink-based shades. When lipstick shopping, look for reds and nudes with green, purple, or blue undertones.

Minimalist Perfecting Complexion Foundation and Concealer Stick
MERIT Minimalist Perfecting Complexion Foundation and Concealer Stick
$38 at Sephora
Revealer Super Creamy + Brightening Concealer and Daytime Eye Cream
Kosas Revealer Super Creamy + Brightening Concealer and Daytime Eye Cream
Airbrush Flawless Finish Setting Powder - 1 Fair
Charlotte Tilbury Airbrush Flawless Finish Setting Powder - 1 Fair

If you answered mostly with the right column…

celebrities with warm undertones, skin warm undertones, zendaya, jackie aina, megan thee stallion
Getty Images
Zendaya, Megan Thee Stallion and Jackie Aina all have warm undertones.

You have warm undertones! Your skin's undertones appear more yellow, golden, or peach. According to Pefferman, you look great in gold jewelry, green, brown, mustard yellow, warm reds, peach, coral, and amber makeup or clothing. When choosing a foundation or concealer, choose yellow or peach-based shades. For lipstick, look for reds that have orange undertones.

Best Skin Ever Liquid Foundation - 57Y
Sephora Collection Best Skin Ever Liquid Foundation - 57Y
Pro Filt'r Instant Retouch Concealer - 410
Fenty Beauty by Rihanna Pro Filt'r Instant Retouch Concealer - 410
Sublime Perfection Setting Powder - Deep 5
Pat McGrath Labs Sublime Perfection Setting Powder - Deep 5

If you answered with a combination of the left and right columns…

celebrities with neutral undertones, skin neutral undertones, lana condor, selena gomez, ashleigh murray
Getty Images
Lana Condor, Selena Gomez and Ashleigh Murray all have neutral undertones.

You’re neutral! It's hard to tell if the veins on your inner wrist are blue-purple or blue-green because they’re a little bit of both. You have a mix of warm and cool undertones. Pefferman notes that many colors look great on neutral undertones, although most people are not true neutrals — instead you might be a cool, warm, or olive neutral. Because neutral undertones are equally highlighted with cool and warm colors, Pefferman suggests picking makeup colors based on the color of your hair and eyes.

Liquid Touch Weightless Foundation - 340C
Rare Beauty by Selena Gomez Liquid Touch Weightless Foundation - 340C
BE You Skin Perfecting Conceal
Hi Beautiful You BE You Skin Perfecting Conceal
Smooth Operator Amazonian Clay Tinted Pressed Finishing Powder - Medium
Tarte Smooth Operator Amazonian Clay Tinted Pressed Finishing Powder - Medium
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