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Re: color contrast on 60pt logo letters

for

From: Cliff Tyllick
Date: Mar 29, 2013 9:50AM

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