Hi, Black_Conscious.
Wikipedia says this: Olive skin is a human skin color spectrum. It is often associated with pigmentation in the Type III to Type IV and Type V ranges of the Fitzpatrick scale. It generally refers to light or moderate brown, brownish, or tan skin, and it is often described as having yellow, green, or golden undertones.
An interesting fact about olives -- they do not naturally turn black but must be soaked in lye.