Is it wrong for a Christian to prefer (within the body of Christ) a marriage partner of a race different than his own?

He grew up as a missionary in a different culture than his own and speaks the language, is it sinful for him to want to marry one of that race rather than one of his own race? (no bias toward his own or any other race). If he knew it was God's will he would marry whomever God wants, whether of that race or not. But to him he naturally likes the culture, language, etc of the race he grew up in.