Synonyms for Colour-blind (same or very similar meaning)
WordNet sense 1 (unable to distinguish one or more chromatic colors):
color-blindWordNet sense 2 (unable to see):
blind, unsightedWordNet sense 3 (unprejudiced about race):
nonracistWordNet sense 4 (free from undue bias or preconceived opinions):
impartial, unprejudicedFrom the ODE community, based on WordNetadd/edit