I’m happy to announce that I just released a new color blindness test. It is the most famous D-15 dichotomous test which was originally introduced in 1947 by Mr. Farnsworth.
The D-15 test is a so called arrangement test. This type of color blindness tests are based on a set of colored plates or discs which have to be arranged in the correct order. Colorblind people will have difficulties to arrange the given colors and make mistakes. Based on this mistakes and the resulting confusion vector, the type of your color blindness and as well its severity can be calculated.
This pictures shows my personal test result. The 16 squares, which have to be arranged in the test, are shown in a circle—which would be the correct sequence. The thick line shows the order I’ve chosen and in this case P-15-1-14-2-3-13-12-4-5-11-10-6-7-9-8.
According to the scoring technique of Vingrys and King-Smith this results in a confusion angle of 1.2 degrees and a confusion index of 3.70.
Or in other words I am suffering from a strong protan color vision deficiency, which corresponds with the diagnosis of my eye specialist.
… and what this color blindness test can not do:
Go ahead and check out the online D-15 Farnsworth test and learn some more details about your color vision abilities—or maybe disabilities.
New kind of color blindness test! Try Color Blind Check and test type and severity of your color vision deficiency. Easy and fun!
Info at www.colorblindcheck.com 
