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Who Can Use Alternatives

Who Can Use Alternatives

Who Can Use

What is WhoCanUse?

It's a tool that brings attention and understanding to how color contrast can affect different people with visual impairments.
The Web Content Accessibility Guidelines covers a wide range of recommendations for making Web content more accessible. Just a tiny part of making the web more accessible is accommodating for those with a form of blindness or low vision.
The standard grading system is a great start, but I thought I'd try to humanize the people who are affected by the different grades.

Where did you get the info from?

The percentages are sourced from both colour-blindness.com and Vision Australia.

Your math is off, it doesn't add up to 100%?

Good eyes! The population data provided are estimates for individual impairments, and don't cover the vast amount of visual impairments in the world. This is to give you not just an understanding of how color contrast affects different people but also who it can affect.

I'm fascinated by how this works, can you tell me more?

Of course! There's a few stages to get to this point. First we figure out the contrast between two HEX values. For this we're using a plugin called Chrome.JS - this does the heavy lifting for us. Once we have the ratio (and using font size and font weight) we can apply a grade to that specific color combo.

For the color blindness options we're using another plugin aptly called Color-blind that converts our HEX codes into ones that would be seen by people with the different impairments, then we can apply our same process to obtain the color ratios and determine their grade.
For cataracts, glaucoma, low vision, and the situational events I've personally created simulations to help identify their rating.

What does a failing grade mean?

The grading uses a combination of color contrast, text size and text weight. A fail simply means that the color combination offers some visual strain to the person seeing it and should be avoided if possible.

Best Who Can Use Alternatives

Are you looking for alternatives to Who Can Use? Please see our top picks. In this article, we provide the list of some Who Can Use alternatives that will work on Windows and other platforms.

Colour Contrast Analyser

Colour Contrast Analyser

FreeMacWindowsPortableApps.com

Colour Contrast Analyser allows you to evaluate the color visibility and contrast of foreground/background color combinations. It provides an initial pass/fail...

Palette for Mac

Palette for Mac

FreeMacWebElectron / Atom Shell

Palette provides a super simple way to analyze colors across RGB, #HEX and CSS formats. Try it online for free or download it for macOS with a donation-based download...

Wave (accessibility tool)

Wave (accessibility tool)

FreeWebFirefox

WAVE is a visual web accessibility analysis tool that evaluates web accessibility based on the Web Content Accessibility Guidelines (WCAG).

Cron Color

Cron Color

FreeWebSelf-Hosted

Cron Color Tool provides an easy and useful tool for designing color palettes with an intuitive color contrast checker.

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