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Re: Color Contrast Testing Visual Question


From: Jim Homme
Date: Aug 23, 2019 10:03AM

The team is not using the newest version of the tool. Is the bug old?



Jim Homme
Digital Accessibility
Bender Consulting Services

-----Original Message-----
From: WebAIM-Forum < <EMAIL REMOVED> > On Behalf Of Patrick H. Lauke
Sent: Friday, August 23, 2019 11:41 AM
Subject: Re: [WebAIM] Color Contrast Testing Visual Question

On 23/08/2019 16:18, Jim Homme wrote:
> Hi,
> This is a question for my understanding as a totally blind person. A tester reports that content passes or fails contrast testing depending on monitor settings. We are using Colour Contrast Analyzer. If this is the case, how can we depend on accurate results, because we would not know the kind of monitor an audience has?

The tester may be referring to this bug in current Colour Contrast Analyser, which is unfortunately not likely to get solved any time soon (or, I fear, at all, due to the limitations of using Electron for the app)


Testers should refer back to the actual values defined in the CSS / using developer tools to find the actual computed foreground/background values, and stick those into the text fields of CCA to find the correct ratio.

Because yes, to pass the SC, you don't take the user's calibration/settings into account, as that would be impossible for authors to account for.

Patrick H. Lauke

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