Automatic Contrast test?
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Could this be tested automatically?
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Wouldn't be easy
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But certainly feasible for text
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Probably not for images
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Not done today (WCAG 2.0 too new and not final)
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Didn't look for this in the tools study, https://jimthatcher.com/testing.htm
WCAG 1.0 required "sufficient contrast" How could that possibly be tested - by computer or otherwise. It could not.
WCAG 2.0 is very specific - assuming you know what
Go to desktop and use color analyzer. Colour Contrast Analyzer (Google)