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Re: color contrast on 60pt logo letters

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From: Jonathan Metz
Date: Apr 2, 2013 2:41PM

I third Jared and James (and now Cliff), though I agree with Bryan that the SSB Bart Group contrast checker is pretty awesome.

To expand on Cliff's point - if you want to see what it looks like to other people, but can't find any - you might consider installing color oracle (http://www.colororacle.org). It'll at least give you an idea of what it might look like to someone who is color blind.

Jonathan Metz

From: Cliff Tyllick < <EMAIL REMOVED> <mailto: <EMAIL REMOVED> >>
Reply-To: Cliff Tyllick < <EMAIL REMOVED> <mailto: <EMAIL REMOVED> >>, WebAIM Discussion List < <EMAIL REMOVED> <mailto: <EMAIL REMOVED> >>
Date: Friday, March 29, 2013 11:50 AM
To: WebAIM Discussion List < <EMAIL REMOVED> <mailto: <EMAIL REMOVED> >>
Subject: Re: [WebAIM] color contrast on 60pt logo letters

Angela, I agree with both Jared and James: First, use your best judgment; ultimately, realize that logos are exempt.

As for usability, folks who need larger text typically also need lower contrast—a white background becomes a harsh glare when viewed closely—so it's likely that if you can see it comfortably but are bit worried about low contrast it is just fine for that group.

With no hard and fast answers, perhaps you could find a few colleagues, customers, or even neighbors whose vision isn't as good as yours and see if it works for them. If it works for people who typically increase the contrast before they try to expand the size of the displayed content, then you have a real-world answer to your question.

And that's a better answer than any mathematical formula can give you.

Cliff Tyllick
AT&T Corporate Accessibility Technology Office



From: Angela French < <EMAIL REMOVED> <mailto: <EMAIL REMOVED> >>
To: WebAIM Discussion List < <EMAIL REMOVED> <mailto: <EMAIL REMOVED> >>
Sent: Friday, March 29, 2013 10:30 AM
Subject: Re: [WebAIM] color contrast on 60pt logo letters