Wiktionary
color blind
a. 1 (context of a person or animal English) Unable to distinguish between two or more primary colors (usually red and green). 2 (context of a person or process English) Holding no prejudice based on skin color or race; not paying attention to skin color. alt. 1 (context of a person or animal English) Unable to distinguish between two or more primary colors (usually red and green). 2 (context of a person or process English) Holding no prejudice based on skin color or race; not paying attention to skin color.