Color blindness is the inability to distinguish one or several chromatic colors, independent of the capacity for distinguishing light and shade. Usually inherited or present at birth, color blindness is caused by an absence of color-sensitive pigment in the cone cells of the retina. About one out of 20 women and one out of 12 men are color blind.

If you’re concerned you may be color blind, take this quick and easy online Ishihara Color Blindness Test to find out. This test consists of scanned plates, with a number in the center of a circle. If you can see the number, you most likely are not color blind. Keep in mind that the colors seen here do not exactly match the original test, and your test results may also be affected by the color settings on your computer screen.

Color blindness is the inability to distinguish the differences between certain colors, especially red, green, blue or mixtures of these colors. Caused by an absence of color-sensitive pigment in the cone cells of the retina, most color vision problems are inherited and are present at birth. Approximately 1 out of 12 males and 1 out of 20 women are color blind.

Could you be color blind? Take this online version of the Ishihara Color Blindness Test to find out. This test consists of scanned plates, with a number in the center of a circle. If you can see the number, chances are you are not color blind. Please be aware that the colors here are not exactly the same as in the original version. Also, every computer screen has different color settings, therefore the test results might alter between different trials.