Free Color Blind Test
Color blindness in humans is the inability to perceive
differences between some of the colors that other people can
distinguish. It is most often of genetic nature, but may also
occur because of eye, nerve, or brain damage, or due to exposure
to certain chemicals.
In the above colorblind test, the answers are:
Plate 1: 12
Plate 2: 8
Plate 3: 29
Plate 4: 5
Plate 5: 3
Plate 6: 15
But even if you pass this test, be aware that
color vision can deteriorate over the course of a lifetime.
shows the number 37, but someone who is protanopic may
not be able to see it.
shows the number 56, but someone who is tritanopic may
not be able to see it. Note: Number in the image may not
be visible on LCD screens or with excessive screen glare
The Colorblind Test