There is no division of caste and colour in Buddhism. In some country, the caste system is a very important social structure. However, Buddhism is free from caste, racial, and gender prejudices. Everyone is equal in spiritual potential.
The Buddha explained that a man's virtues or vices depend on his deeds, not his birth or wealth. One who comes to be ordained in Buddhism has equal rights such as the right to vote in meetings. The only difference is the order of seniority which goes according to the precedence in ordination.
Buddhism lays stress on human equality by pointing to the importance of knowledge and good conduct. The Lord Buddha taught that one who is endowed with knowledge and good conduct is excellent among divine and human beings.