. *Look at the color of the veins on the inside of your wrist*. This is a quick way to determine your undertones if your veins are visible. Hold up your arm in the natural light and determine the predominant color. - If you can't tell if your veins are green or blue, you may have a neutral skin tone. If you have an olive complexion, you likely fall into this category. - If your veins appear green, you have a warm skin tone. - If your veins appear blue or purple, you have a cool skin tone.
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