Federal and state laws provide employees with strong protections agsinst discrimination based on race (including all races - African-American, Caucasian, Hispanic and Latino, and everyone else!). Unfortunately, despite these laws having been on the books for many years, racial discrimination still happens in American workplaces.
Racial discrimination is not always easy to identify or prove. While sometimes supervisors may make direct derogatory comments about an employee's race, discrimination is usually more subtle than that.
Employees may suspect that they are being discriminated against when they are treated differently than co-workers of a different race. You promotional opportunities may be more scarce than your peers or you may consistently be assigned tasks below your ability level. You might be "written up" for minor issues where others have not received similar discipline.
The fact that discrimination may be "subtle" should not discourage employees from standing up against it. Even differences in treatment that are the result of a supervisor or company's "implicit bias" against individuals in a racial group should not be tolerated in today's society.
Whatever your field or occupation, you should contact a civil rights employment attorney if you feel that you have been the victim of discrimination on the job.