Although mixing your perfect shade is going to take some experimenting, there are a few things you will want to learn about colors, undertones, and correcting, before you begin.With this knowledge you can mix colored cosmetics that will perfectly match and correct your specific skin tone.
Our skins undertone is the color underneath the surface. Cool, warm, or neutral are the colors that come through your skin from under the surface to affect its overall hue. You can have the same skin color as someone, but different undertone.
Cool (pink, red or bluish undertones)
Warm (yellow, peachy, golden undertones)
Neutral (a mix of warm and cool undertones)
The easiest and most accurate way to figure out your undertone is by looking at the inside part of your arm where the color show fairly well. This area is hidden from the sun and is not damaged or discolored, which is why skin in this area works best to reveal how warm, cool, or neutral your skin really is.
Look at the veins on the inside of your wrist. If they look more blue, you likely have cool undertones. If the veins look greenish, you are warm.
Color correcting is the technique of using specific colors to correct issues with your skin tone. Unlike foundation that simply covers imperfections, these green, lavender, yellow, and coral hues help target issues. They help with redness, under eye circles, dullness, and dark spots. Keep in mind that lighter shades work best on fair skin, while deeper shades are perfect for darker tones.