/ˈkə-​lər-​ˌblīnd-​nəs/

noun

“partial or total inability to distinguish one or more chromatic colors.” -Merriam-Webster Dictionary

Color blindness is much more common in men because the color blindess gene is located in the X chromosome. Men have XY chromosomes, while women have XX chromosomes. Women would need to inherit two X chromosomes with the color blind gene to be born colorblind. Whether men would only need one X chromosome with the color blind gene to be born colorblind.

Inside of your eyeball there is a thin layer of tissue at the back called the retina, which contain cells that control how we visually see the world. The cone cells in the retina detects color. There are 3 different types of cone cells that each focuses on 1 color: Red, Green, and Blue. That’s why humans perceive color in RGB: Red, Green, and Blue. Color blindness happens when one or more of these cone cells do not work. What happens when you see a color that’s not Red, Green, or Blue? For example, if you were to see Yellow, then the Red and Green cone cells would activate.

(Click one to see the differences in color perception)

Anomalous Trichromacy:

Dichromatic:

Monochromatic:

Trichromacy (No Color Blindness)

"Click on a specific type of color blindness above. More Information about the type of color blindness will appear here."

1. clear and contrasting visuals

Create clear differences between visuals, so it is easier for people to distinguish between them.

2. use colors and shapes

Do not only use colors to indicate an action. Instead, use colors with a shape or an icon.