Free Color Checker Tools for Image ADA Compliance

It is important that your images pass ADA compliance in relation to image contrast and color for accessibility. Users with visual handicaps and color blindness will still need to view the same image as a normal person. We will attempt to guide you with the Web Content Accessibility Guidelines (WCAG) 2.1 guidelines on what the requirements are for accessibility. Make sure you check out the free image contrast tools to check for ADA compliance passing further down the page.

Free Color Contrast Tools

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WCAG 2.1 for Image Contrast

WCAG 2.1 (1.4.3 Level AA) – Contrast Minimum

Contrast minimum requirements for text and images of text (visual presentation) needs to have a contrast ratio of 4.5:1.
There are exceptions to this minimum that include:

  • Larger Text – Contrast ratio of 3:1 for large-scale text and images of large-scale text. 
  • Incidental – No contrast requirements for the following: Images not visible to anyone, part of a picture that has significant other content, text or images part of an inactive user interface, for decoration.
  • Logotypes – No contrast requirements for text that is part of the logo or brand name.

Note: WCAG 2.0 (1.4.3 Level AA) has the same requirements as above.

WCAG 2.1 (1.4.6 Level AAA) – Contrast Enhanced

Contrast enhanced requirements for text and images of text (visual presentation) has to have a contrast ratio of 7:1.
The exceptions to this contrast enhanced include:

  • Larger Text – Contrast ratio of 4.5:1 for large-scale text and images of large-scale text. 
  • Incidental – No contrast requirements for the following: Images not visible to anyone, part of a picture that has significant other content, text or images part of an inactive user interface, for decoration.
  • Logotypes – No contrast requirements for text that is part of the logo or brand name.

Note: WCAG 2.0 (1.4.6 Level AAA) has the same requirements as above.

 

Free ADA Compliance Color Checker Tools

If you are performing an ADA compliance audit yourself, then check out these free contrast tools to test colors for accessibility and ADA Compliance for various WCAG 2.0 and 2.1 AA / AAA.

There are a bunch of other basic tools out on the web that can help with image contrast and web color accessibility for ADA Compliance. If there are tools you like to use, please contact us with your favorite tool for us to add to the list. One last area we would like to cover is defining colors, which are discussed below.

 

What is WCAG 2.1 Contrast Ratio?

WCAG 2.1 AA has a requirement of a contrast ratio of 3:1 (with exceptions) for graphics and user interface components such as borders on input forms. WCAG 2.1 AAA has a requirement of a contrast ratio of at least 7:1. It’s important that we have ADA compliance for color blind users and visually compared users so they can also view the same images with their computers and assisted screen readers.

Colors and Defining the Contrast

There are several ways we can define colors in terms of HTML and web pages.

  • RGB (0, 51, 153) – Red, Green Blue, and the amounts of each one that form a specific color. Colors are between 0 – 255.
  • Hexidecimal Format (#003399) – An HTML/Webpage hexadecimal format with Red, Green, and Blue values. 6 letters and/or numbers make the full color in hexidecimal.
  • HSB or HSL (220, 100, 60) – Hue, Saturation, Brightness/Lightness is another way people will see colors and can help improve contrast ratios by changing the lightness of a color.

When using WCAG 2.1 definitions, the contrast will be measured in terms of the image color’s brightness/lightness between different colors. For example, black text on a black background has a color ratio of 1:1. Black text on a white background will have a color contrast ratio of 21:1 It is important that you test these different contrast ratios to help pass WCAG 2.0 AA ADA compliance at a minimum.

 

Ready to get your website ADA Compliant?

If you are struggling to get your website images and pages to be ADA Compliant, you should look into consulting with an experienced team with getting websites to be WCAG 2.1 AA complaint. From small businesses to large corporations, your website is at risk for multiple ADA website compliance lawsuits (per action) and should be fixed immediately. If you want to ensure that your current site meets and exceeds the WCAG standard, then contact us for a free consultation. (805) 409-7700

Get my Images to be ADA Compliant

 

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