I couldn't find the suitable colour of loreal mineral foundation,fairest colour still look dark on my skin.?

Did anyone know why loreal mineral foundation fairest colour N1 and G1 why still doesn't match my skin colour. If you ever tried these colours, you will found out loreal mineral foundation fairest colour aren't the fairest colour for other brand for foundation...as it looks dark on my skin. HAVE ANYONE TRIED REVLON MINERAL FOUNDATION? OR ANY BRAND OF MINERAL FOUNDATION AT REASONABLE PRICE AT DRUG STORE? thanks....I couldn't find the suitable colour of loreal mineral foundation,fairest colour still look dark on my skin.?
I used to wear Physicians Formula's mineral foundation. It's under $10. It worked good, but I starting using The Body Shop's foundation. It's a little more expensive, about $20, but it works great! Physicians formula is light-weight and subtle, but it still gives decent coverage. You can get it at CVS, Walgreens, or Wal Mart. (it's about $2 cheaper at Wal Mart)