besides blue and pink
k so i didn't know. who cares. i joined in june.
All skin is composed of four substances and has colors in it, brown, yellow, white, and red. These colors have special names. Yellow is carotene, red is hemoglobin, and the brown is melanin. The amount of melanin is the substance that makes people's skin different colors.
or, if you would like to see a more "church" answer
As was discussed in Where did the human races come from?, we learned that all humans on earth today are descended from Noah and his wife, his three sons and their wives, and before that from Adam and Eve (Genesis 1-11). But today we have many different groups, often called "races," with what seem to be greatly differing features. The most obvious of these is skin color. Many see this as a reason to doubt the Bible's record of history. They believe that the various groups could have arisen only by evolving separately over tens of thousands of years. However, as we shall see, this does not follow from the biological evidence.
( there is a bunch of scientific data including Punnet squares to support this theory http://www.manavai.com/articles/art3.htm)
What Really Happened?
We can now reconstruct the true history of the people groups, using:
The first created man, Adam, from whom all other humans are descended, was created with the best possible combination of genes -- for skin color, for example. A long time after creation, a worldwide flood destroyed all humans except a man called Noah, his wife, his three sons, and their wives. This flood greatly changed the environment. Afterwards, God commanded the survivors to multiply and cover the earth (Genesis 9:1). A few hundred years later, people chose to disobey God and to remain united in building a great city, with the Tower of Babel as the focal point of rebellious worship.
From Genesis 11, we understand that up to this time there was only one language. God judged the people's disobedience by imposing different languages, so that they could not work together against God. The confusion forced the people to scatter over the earth as God intended.
So all the people groups -- black Africans, Indo-Europeans, Mongolians, and others -- have come into existence since Babel.