The Bible doesn’t give the number, name or skin color. They came from the east. We might suppose this meant from Persia. We might also think Daniel shared prophesies of the time of the coming of the Messiah, and that the Star would guide them to the place.
It is possible the Magi were a diverse group. The advanced state of scientific knowledge, especially astronomy, could have attracted others. So, perhaps one was Caucasian (a Persian), another Mongolian and a third Negroid. Early depictions of the Magi had them be Persians. But, later depictions featured a racially-diverse group.
The real “proof” of the Magi being diverse is the universality of the Christian message. We know in our heart that it would please God that his son would be welcomed into the world by representatives of the entire human race, and by simple shepherds as well as by wise men.
That's the way I've always thought of the story.
Well Daniel was made the HEAD of the Magi. In Babylon and Persia! All directives for their activities lead directly to him. Daniel knew and provided for the expedition 5 centuries before hand. He was clearly given knowledge from someone outside our analog time line view.