Red Green Blue Purple Color Blind Test. There are two types of red green colour deficiencies. But others have trouble recognizing blue and yellow.
In case of tritan type color blindness you probably won t notice too much difference between the two spectrums but people with normal color vision will see the difference. Complete color blindness is a much rarer form of color blindness. Based on the test results we generate a color spectrum as you may see and display it next to a normal one.
This is a test you ve probably seen before it has little circles colored in red green and blue.
Ishihara test mainly detect red green colorblind. The colors of the tritan test are in the line of the purple red confusion lines. There is an easier explanation of the test. Deutans have a red green color vision deficiency caused by an anomaly in the green sensitive retinal.
