Civil rights law is the branch of law for civil liberties guaranteed by the 13th, 14th, and 15th Amendments to the Consitution and by the Civil ights Act of 1964.
The 13th Amendment prohibits slavery and involuntary servitude. The 13th Amendment does not prohibit slavery or involuntary servitude as a punishment for which a person is convicted.
The 14th Amendment requires states to provide equal protection under the law to all people within their jurisdictions and to afford persons due process of law. Equal protection and due process are perhaps the most significant concepts of civil rights law.
The 15h Amendment prohibits state governments from denying citizens the right to vote based on race, color or slavery.
The Civil ights Act of 1964 outlawed racial segregation in schools, public places, and in employment. It also created the Equal Employment Opportunity Commission.