Color Blind

"An estimated 300 million people worldwide are color-blind."

https://www.livescience.com/health/genetics/why-is-color-blindness-so-much-more-common-in-men-than-in-women?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4