Color Blindness
As many as 8% of men and 0.5% of women with Northern European ancestry have the common form of red-green color blindness
National Eye Institute
The Multi-Ethnic Pediatric Eye Disease Study found prevalence of color vision deficiency (color blindness) among boys at 1.4% for black, 3.1% for Asians, 2.6% for Hispanics, and 5.6% for non-Hispanics white children; the prevalence in girls was between 0.0% to 0.5% for all ethnicities. These findings presented a significant difference between black and non-Hispanic white children and between Hispanic and non-Hispanic white children (2014, para 6).
The most common type of color blindness is with the colors red and green, known as red-green color blindness, but there are many other types of color blindness.
A great resource to see how specific colors are perceived by people affected by a color vision deficiency is Color Hexa. This can be useful if you need to ensure your color combinations are accessible to color-blind users.