This is from Easton's Bible Dictionary:
Adam - red, a Babylonian word, the generic name for man, having the same meaning in the Hebrew and the Assyrian languages. It was the name given to the first man, whose creation, fall, and subsequent history and that of his descendants are detailed in the first book of Moses [Gen. 1:27]. "God created man (Heb., Adam) in his own image, in the image of God created he him; male and female created he them."
Smith's Bible dictionary:
(red earth), the name given in Scripture to the first man. It apparently has reference to the ground from which he was formed, which is called in Hebrew Adamah . The idea of redness of color seems to be inherent in either word.