How can I tell what skin undertone I am?

I%26#039;ve been having such a hard time finding makeup that matches my skin tone. It%26#039;s either too yellow or too pink. My mother tells me I have blue undertones but I%26#039;ve also been told I have yellow undertones. I%26#039;ve also tried neutral tones but those tend to be too yellow on me. I have brown eyes and dark brown/black hair. Anyone have any idea what might work for me?|||Try a neutral color. Nuetrals go either way. I know with my color I use a medium beige. i am olive complected.|||i guess the best way 2 find out is to go 2 any cosmetic store that you visit often and try all sorts of shades on yourself and ask the person who is assisting you cause they seriously have good knowledge..!!