Our color blindness simulator shows how your images, websites, or designs are perceived by people with different types of color vision deficiencies.
Take the following quick steps to use the tool:
With our Color Blind Tool, users can test their website for all major types of color blindness, including Protanopia, Protanomaly, Deuteranopia, Deuteranomaly, Tritanopia, Tritanomaly, Achromatopsia, Achromatomaly, as well as general Blue-Yellow and Red-Green blindness.
Protanopia is a form of red-green color blindness caused by the absence of red cone receptors, making reds, greens, and similar hues difficult to distinguish, often appearing dark or muted. The website color blind test reveals how reds, greens, yellows, and browns may appear as blue or gold, helping you identify and fix areas where color contrast may lead to confusion or poor accessibility.
Protanomaly is a mild red-green color vision deficiency where reds appear less vivid and greens may blend into surrounding hues, reducing overall contrast. When using the colorblind website test, this condition is simulated to show how subtle shifts in red tones can affect visibility and user experience.
Deuteranopia is a red-green color blindness caused by the absence of green-sensitive cones. This shifts how greens and reds are perceived. Greens may take on a brown or reddish hue, making it difficult to distinguish between the two. The colorblind filter simulates this condition, allowing you to see which design elements lose clarity or contrast.
Deuteranomaly is a mild red-green color vision deficiency where greens appear slightly reddish, and colors like yellow, orange, or beige may be hard to tell apart. The colorblind accessibility test simulates this subtle shift in hue, helping you catch areas where low contrast or similar tones could confuse users with this condition.
Tritanopia is a rare type of blue-yellow color blindness where the blue-sensitive cones are missing. This causes blues to appear greenish, while yellows and oranges may shift toward pink, gray, or even disappear into the background. The website color blind test visualizes this, helping you detect color pairings that could lose clarity and impact for users with this condition.
Tritanomaly is a blue-yellow color vision deficiency where colors appear muted and shifted. Users with this condition often find it difficult to differentiate between blues and greens, and yellows and reds may also blend together. The website color blind test reveals areas where colors lose their distinctness and require adjustment for better accessibility.
Achromatopsia is a rare condition causing complete color blindness, where individuals see the world in black, white, and varying shades of gray due to non-functioning cone cells. The colorblind accessibility checker simulates this by converting your site’s colors to grayscale, helping you identify if important visual cues still stand out without color.
Achromatomaly is a partial color blindness where colors appear faded and muted, with individuals seeing the world mostly in gray tones due to partially functioning cone cells. The website colorblind viewer simulates this by showing your site as a washed-out, nearly monochrome image, helping you identify design elements that rely too heavily on subtle color differences.
Blue-yellow color blindness, known as tritanopia, reduces the ability to differentiate blues from greens and yellows from reds. Colors often appear faded or less vibrant. The website color blind test simulates this by altering hues and brightness, revealing where your site’s colors may blend together or lose impact for affected users.
Red-green blindness is the most common form of color vision deficiency, making it difficult to distinguish between reds and greens, often causing these hues to appear similar or muted. The website color blind filter simulates this condition by adjusting how reds, greens, yellows, and browns are displayed, helping you spot where color choices may create confusion or hinder usability.
Checking your website for color blind accessibility is essential for inclusivity and to meet legal requirements such as WCAG, ADA, AODA, and Section 508 of the Rehabilitation Act.
Without accessible color use, users with color vision deficiencies may miss key elements like buttons, links, or warnings, leading to a poor experience, frustration, and lost trust.
For businesses, this means lost engagement, fewer conversions, and damage to brand reputation. By testing and optimizing your site for color blindness, you ensure inclusivity, improve usability for a wider audience, and protect your brand’s integrity while complying with accessibility laws.
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