Does Foundation Look Orange on Your Skin?

If you have oily skin, then you have probably encountered the orange-tinted side effect of wearing some foundations. Personally, I have combination skin and have had this problem with both liquid foundations and some powder mineral foundations.
Basically it starts out fine, the foundation color perfectly matches my skin tone, and then an hour or so later the color looks darker and is an unattractive shade of orange! My search for the answer to this problem has led me to believe that it is a combination of things that cause this color reaction.
It seems that the oily areas of the skin (the t-zone) can affect the pigments in the foundation, causing it to appear darker on your face than in the container.