Noupe: A Quick Guide to Color Blind Design: How to Present Data to Everyone. “Reduced color perception or the capacity to distinguish between colors are symptoms of color blindness. Color blindness affects 1 in 200 women and 1 in every 12 men. Do digital resources like websites and educational materials affect color blindness? Absolutely! Consider accessibility best practices when creating online documents to ensure that your website or online products are accessible to all visitors.”