<P> Inability to distinguish color does not necessarily preclude the ability to become a celebrated artist . The 20th century expressionist painter Clifton Pugh, three - time winner of Australia's Archibald Prize, on biographical, gene inheritance and other grounds has been identified as a protanope . 19th century French artist Charles Méryon became successful by concentrating on etching rather than painting after he was diagnosed as having a red--green deficiency . </P> <P> A Brazilian court ruled that people with color blindness are protected by the Inter-American Convention on the Elimination of All Forms of Discrimination against Person with Disabilities . </P> <P> At trial, it was decided that the carriers of color blindness have a right of access to wider knowledge, or the full enjoyment of their human condition . </P> <P> In the United States, under federal anti-discrimination laws such as the Americans with Disabilities Act, color vision deficiencies have not been found to constitute a disability that triggers protection from workplace discrimination . </P>

How common is color blindness in the world