STEP #1: ANSWER “WHAT IS MY SKIN TONE?”
You're having a hard time finding the right shade for your skintone (the natural shade or color of your bare face). To find the right one, you have to asses your skin tone with this simple guides.
If you have a fair skin tone… you are more likely to have porceleine skin.
If you have a light skin tone… you are still considered as pale but not as much as your fair friends.
If you have a medium skin tone… then you are in the middle, your skin shade is not dark or light, it's just something in between.
If you have a deep skin tone… your skin complexion is dark.
STEP #2: DETERMINE YOUR UNDERTONE
Your skintone is important but it's not all that matters, another important thing to know is your undertone. It plays a majoy part in the coloring of your makeup. Here are some guides to find your undertone.
1. Look at the inside of your arm.
All this needs is to flip your arm and look at your wrist that shows your veins. If they appear blue or purple, you’re cool-toned, while green veins indicate warm-toned skin. If you’re not sure, you very well might be neutral.
2. Hold a piece of white paper to your face.
Place a white piece of paper next to your face and see the cast of your skin to show your undertone.
If your face suddenly appears pink or blue, it’s a sign you’re cool. If you look yellow, you’re warm. If your skin seems gray, you’re neutral.
3. Consider what color of jewelry looks best on you. If gold complements your skin tone the best, you’re warm, while looking good in silver indicates cool undertones. If you like both and can both, you may have a neutral undertone.
STEP #3: CHOOSE A COORDINATING CONCEALER
You concealer shade should always be close to the shade of your skin complexion, despite what you heard, which means its not one shade lighter or darker.
STEP #4: OPT FOR COLORLESS POWDER
Don't struggle to find another shade to use as your powder, instead, use a transluscent or invisible powder to set your makeup with any shade.
https://www.lorealparisusa.com/beauty-magazine/makeup/makeup-looks/how-to-match-makeup-to-skin-tone.aspx