Research suggests that color blindness is most prevalent in Caucasian males. There are different types of color blindness, including red-green, blue-yellow, and complete color blindness.

For example, red-green can subdivided into Deuteranomaly, Protanomaly, Protanopia, and Deuteranopia. Deuteranomaly is the commonest of the four, with greens looking more like a red color to a person.

Roses are red, violets are blue, bananas are yellow, and grass is green. For sighted people, nobody questions that they can both know an object’s color and understand the concept of color. But ...

To the color blind, the world can appear gray, brown, dull and some colors indistinguishable (like purple and blue).

WebMD explains color blindness, a condition in which a person -- males, primarily -- cannot distinguish colors.

In reality, very few people are truly color “blind,” and unable to see any color. Most who have difficulty differentiating colors have what is more accurately described as color vision ...

I'm red-green color blind and I work as a Product Designer at Quora. My color blindness is on the stronger side (~1% of all men instead of a more common kind that affects about 5%). My short ...

If you or anyone in your family has color blindness, here's what to know about the vision condition — and what to watch for when it comes to the health of your eyes.

If a person has problems with the blue-sensitive cones in their eyes, they will be blue-yellow color-blind, although this form of color blindness is less common than red-green.