This Developer Tools extension allows you determine whether or not the color contrast on a site is WCAG 2.0 AA and AAA compliant.

Latest Version

Version
1.3
Update
June 19, 2015
Size
9.05KiB
Developer
Category
Users
989
Rating
4 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
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ColorA11y Extension

ColorA11y allows you to easily select a foreground color and a background color, and determine whether or not the contrast ratio between the 2 colors is WCAG 2.0 compliant. ColorA11y can help validate the existence of web accessibility issues you think you already have with color contrast. This Developer Tools extension can also help verify you're technically adhering to the WCAG 2.0 color contrast guidelines. Simply open the Developer Tools in Chrome, and open the ColorA11y tab. Currently, this works best using Mac's color picker, and not the Windows native tool. I'm working on integrating this with Spectrum, and will have an update shortly.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "ColorA11y", "manifest_version": 2, "description": "This Developer Tools extension allows you determine whether or not the color contrast on a site is WCAG 2.0 AA and AAA compliant.", "version": "1.3", "devtools_page": "a11ycolor.html", "icons": { "16": "icon-16.png", "48": "icon-48.png", "128": "icon-128.png" }}
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How to download and manually install ColorA11y extension for Chrome

Looking for a way to install ColorA11y extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install ColorA11y extensions manually, this article outlines two simple methods to effortlessly install ColorA11y extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download ColorA11y extension and manually install through Drag &Drop

If you ever need to manually install a ColorA11y extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the ColorA11y Extension by clicking the "Download CRX" button on the website.

Look for the ColorA11y extension you wish to install. Go to the website and download the ColorA11y extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for ColorA11y extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the ColorA11y extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download ColorA11y extension for Chrome and install in Developer Mode

This is another method to install ColorA11y extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the ColorA11y extension file

Select and download the ColorA11y extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the ColorA11y extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your ColorA11y extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the ColorA11y extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install ColorA11y extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Nick Welsh (ID: 0000005755829e3e) Voted 2 ★ - Updated 08/08/2018 Not easy to use. Lacking basic ease of use functionality. May be broken in latest versions of Chrome. Tested in Chrome Version 68.0.3440.84 (Official Build) (64-bit)

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Santina Croniser (ID: 000000958354ea45) Voted 5 ★ - Updated 02/27/2018 a bit odd to figure out, but fantastic once you do! Highly recommended!