I always have trouble finding a foundation LIGHT enough for me. I'm pale with cool undertones and naturally dark strawberry blonde hair. What I have found to work:
Revlon Photo Ready in 001 Ivory
Covergirl Clean Sensitive Skin in 205 Ivory
Physicians Formula Mineral Wear Pressed Powder in Translucent
Clinique Perfectly Real Makeup in 01 (a little dark)
and my perfect match foundation Kat Von D Lock-It Tattoo Foundation in Light 42
Revlon Photo Ready in 001 Ivory
Covergirl Clean Sensitive Skin in 205 Ivory
Physicians Formula Mineral Wear Pressed Powder in Translucent
Clinique Perfectly Real Makeup in 01 (a little dark)
and my perfect match foundation Kat Von D Lock-It Tattoo Foundation in Light 42