Is it possible to have rosy cheeks but still have yellow undertiones to your skin? All the foundations that various cosmetic store employees have recommended for me make my skin look orange and they're all pinkish undertones.
When you wear makeup, you are essentially covering your face with pigment to hide let's say blemishes and such. So if you have naturally rosy cheeks, they will not look the same when you wear makeup. Even wearing sheer coverage foundations and such, your cheeks will look slightly discolored. That is why there is blush to give you that natural rosy cheek look as well. As for your undertones, you can determine your undertone using this method. If you burn easily in the sun: pink undertones. If you tan instead of burn: golden undertones. As for shade: that is literally your skin color. If you don't have too many blemishes or none at all, you can wear sheer coverage foundation and apply lightly either over your where your blemishes are and spread it outwards over your face / or nose, forehead, and chin area and spread it outwards over your face. This way you will not cover your beautiful cheeks too much.