There are lots of websites claiming for online color blindness test or providing free color blindness test but most of them are not working properly or not giving accurate results. So, here are the top 5 websites that you must refer to for accurate results, Each website in this list have its own special features which I mentioned below, all the websites in this list are totally free of cost, interactive interface and provides comparatively better results:

Image Source: Wikipedia | Author: Johannes Ahlmann

1. Eyeque.com

2. Enchroma.com

3. Colorlitelens.com

4. Coolwinks.com

5. Onlinecolorblindtest.com

1. EyeQue


Free Colour Blindness test online

 

Features:

    • Interactive Interface.
    • Easy to use.
    • Email Guidance.
    • Chat Support.
    • Our Rating – 4.5/5.
Take Online Color Vision Test: Click Here
 

 

2. EnChroma

Free Colour Blindness Test by Enchroma

Features:

    • Interactive Interface.
    • Easy to use.
    • Email Guidance.
    • Chat Support.
    • Our Rating – 4.5/5.
Take Online Color Vision Test: Click Here
 
 

Features:

    • Interactive Interface.
    • Easy to use.
    • Our Rating – 4.5/5.
Take Online Color Vision Test: Click Here
 
 

4.ColorLiteLens  for Color Blindness Test  

 

Colorlitelens

Features:

    • All types of color blindness tests are available.
    • Easy to use.
    • Our Rating – 4.5/5.

 

 

5. OnlineColorBlindTest For Color Blindness Test

 

Free Color Vision Test Online

Features:

    • Interactive Interface.
    • Easy to use.
    • Our Rating – 3.5/5.
Take the Ishihara Color Blind TestClick Here
 
Most people who are color blind don’t even realize that they have some form of color deficiency and that’s because they can still see colors. People with color blindness do not see the world in perfect black and white instead they see things more kind of a yellow or brown hue and part of that because there are many different types of colorblindness.

 

 Did you know?

Every 1 out of 12 men are colorblind and that 1 out of every 200 women have some form of color deficiency.

 

Causes of color blindness

1. Most of the time color blindness is inherited genetically.

2. Color blindness that results from some toxicities.

3. Some eye diseases can cause color vision deficiency or color blindness.

 

 

Probabilities for transfer of color blindness from parents

Studies found that genetics for color blindness is carried on the X-chromosome alone.

Case 1: Father is not color blind, Mother is a carrier

If somebody’s father isn’t color blind but their mother is a carrier for the gene then there’s a 50% chance that her son would be colorblind.

And then there’s a 50% chance that her daughter would become a carrier as well but because it is a recessive gene the daughter will only be a carrier and won’t necessarily be color blind.

Online Colour blindness Test Free :Are you Colour Blind ? , Probability for transfer of Colour Blindness

Case 2: Father is color blind, Mother is a carrier

If a woman who is a carrier has a child with a man who is color blind there’s again a 50% chance that their sons could become colorblind.

And 100% chance that their daughter will at least be a carrier of the gene and a 50% chance that their daughter could be colorblind as well.

Colour Blindness Transfer Chart , Online Colour blindness Test Free :Are you Colour Blind ?

Case 3: Father is not color blind, Mother is color blind

If a woman is color blind and she has a family with a man who is not colorblind all her sons would be colorblind and that’s because she’s only passing on colorblind X chromosomes.

And then her daughter would be guaranteed to be a least a carrier.

Case 4: Father is color blind, Mother is color blind

If a color-blind woman has children with a colorblind man then all of their children would be color blind.

Both Parents Colour Blind , Online Colour blindness Test Free :Are you Colour Blind ?

Most of the time colorblindness is passed down through genetics these individuals will have some form of a red-green color deficiency however they usually still can see red and green need to see things as different hues of red and greens compared to somebody who doesn’t have color blindness.


How does Colour Vision work? |  What is Trichromacy/Trichromatic Vision?

Color vision works within the eye because your retina has different cones that perceive the different wavelengths of light. These cones are:

1. S-cones. 

2. M-cones.

3. L-cones.

S-cones stand for short-wavelength cones and that pertains to different short wavelengths of light such as blue light.

M cones for a medium range of wavelength of cones are usually in the green color ranges.

L cones for long wavelengths of light which are more of the red colors of the light spectrum.

The person who has all three of these cones functioning well within the retina is known to have trichromacy or what is called trichromatic vision.

Online Colour Blindness Test Free , Trichromatic Vision, S- cones , M-cones, L-cones
Trichromatic Vision

Types of Color Blindness

Anomalous trichromacy

The most common type of color blindness is called anomalous trichromacy and that’s where one of these cones in the retina is not functioning as well as the rest of the two cones.

 

1. Protanomaly(Red Color Deficiency)

Online Colour Blindness Test free, Red Colour Deficiency, Colour Blindness
Red Colour Deficiency

When the L cone is impaired and not functioning properly then this is called protanomaly. In protanomaly, the sensitivity line shifts toward the M cone leaving the difference between the two cones to be very small and hard to tell the difference between the two colors meaning the person having such type of color vision deficiency has trouble seeing red and sees things more as green yellow and Browns.

2. Deuteranomaly (Green Color Deficiency)

Green Colour Deficiency, Online colour blindness test free
Green Colour Deficiency

A person with the M cone Shifting toward the L cones the longer red wavelengths have Deuter anomaly and will see redder normally and have difficulty seeing the green colors.

3. Tritananomaly (Blue-Yellow Color Deficiency)

Tritananomaly , Blue-yellow colour deficiency, online colour blindness test free
Blue-Yellow Color Deficiency

In this, the S-cone is shifted toward the green and read these people have trouble with blue and yellow colors but it is rare and almost always acquired in some type of eye disease.

 

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