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Re: Border width for regions on a map/chart

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From: Steve Green
Date: Sep 17, 2019 6:31PM

The Understanding page for WCAG 1.4.11 contains lots of explanations and examples, but it does not specify a minimum border width. In fact, some of the examples of textboxes have a border width of just one pixel. I am 100% certain that the minimum border width is not specified anywhere in any authoritative source.

In practice, I find that 3 pixels is usually enough, and I get a lot of push-back from designers and other stakeholders if I ask for anything wider. The same applies to focus indicators.

Steve Green
Managing Director
Test Partners Ltd