In the world of color, many factors impact the ability to
reproduce good color. The most basic (and often overlooked) factor is
the ability to see color correctly. The lack of this ability is called
colorblindness. About 8% of the male population suffers from
colorblindness, while less then 1% of females do.
There are different types of colorblindness that affect which colors
cannot be perceived as different, and how limited the differentiation
is. Surprisingly, many eye doctors do not administer colorblindness
tests as a part of the routine eye examination.
Although we all know that the colors viewed on your computer's monitor
are not accurate for print reproduction, your screen color is probably
good enough to yield reasonably accurate colorblindness test results.
We invite you now to test yourself for colorblindness online.
Color Blindness Tests
Begin with the simplest of tests by Alan R Miller of New
The most famous colorblindness test was created by Dr. Shinobu Ishihara
of University of Tokyo. If you visit an ophthalmologist you will most
likely be given some variation of this test. Click here to take the Ishihara Test.
A unique and very interesting variant to most conventional
colorblindness tests has been developed by Aaron Clauset of Haverford
College. Unlike most tests, which require good color vision, only the
colorblind can pass his tests! Click here to take the Clauset Test.
Aaron's friend and collaborator Nick Yee even takes this test a step
further on his website by including a graphic that reveals one thing to
the colorblind and another to those with normal vision. Click here to
take the Yee test.
A highly interactive test developed by Jean Jouannic not only detects colorblindness
(or Daltonism, as it is also called) but also attempts to diagnose the specific type
and degree of color blindness. Click here to
take the Jouannic test. This may be the most useful test on our site.
Instrument maker X-Rite, whose empire include color standards company Pantone,
should know color. Click here to
take the X-Rite Color Challenge. Too bad X-Rite opted to make this test
more entertaining than helpful.
These tests do not constitute medical advise. If after taking these
tests you believe that you may be colorblind, Copresco suggests that
your next step be to find an optometrist or ophthalmologist who is
comfortable diagnosing and evaluating colorblindness. Choose your eye
doctor carefully; not all are skilled in this area.
Remember, colorblindness comes in varying degrees. Just because someone
doesn't run stoplights doesn't mean that they won't have difficulty properly
evaluating accurate color reproduction on the printed page!