Re: 1.4.11 if a button has a background less than 3:1 and no border does it pass

I've filed this as an issue #800, to make it easier to show the examples
and have a better discussion framework.

https://github.com/w3c/wcag/issues/800

Cheers,
David MacDonald



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On Tue, Jun 25, 2019 at 12:38 PM David MacDonald <david100@sympatico.ca>
wrote:

> On the call "Example 3" on this page was presented as a pass of 1.4.11.
> https://alastairc.uk/tests/wcag21-examples/ntc-focus-styles.html
>
>  It confused me and I want to check my assumptions with others on our
> current interpretation of 1.4.11. I would like to get others opinion on two
> scenarios. Do these pass of fail?
>
> 1) a button has a background but it is less than 3:1 contrast  (no
> border). The button text is 4.5:1 on the button background as per 1.4.3.
> 2) a button has a visible border and background but both are less than 3:1
> contrast against the page color. The button text is 4.5:1 on the button
> background as per 1.4.3
>
> The text of the SC is this:
>           Visual information required to identify user interface
> components and states ... [has 3:1 contrast]
>
> Is the text "Example 3" enough to know that this is a user interface
> component without perceiving the grey background.
> If Example #3 had a border less than 3:1 would it pass 1.4.11
>
> My feeling is that the words "Example 3" is not enough to know that this
> is an interactive control.  If an author is creating a background for a
> button to indicate it is a button, doesn't that background need to meet
> 3:1?
>
> And if an author puts a border around a button, doesn't that border need
> to meet 3:1?
>
> Whatever our consensus on what is necessary to know a button is an
> interactive control, I'd like to make it explicit in the understanding for
> 1.4.11.
>
> My interpretation is that if there is no background and border, then low
> vision people have no disadvantage but if there is a visible border or
> background then the SC kicks in and there needs to be sufficient contrast
> in the button or border. What do others think?
>
> Cheers,
> David MacDonald
>
>
>
> *Can**Adapt* *Solutions Inc.*
>
> Tel:  613-806-9005
>
> LinkedIn
> <http://www.linkedin.com/in/davidmacdonald100>
>
> twitter.com/davidmacd
>
> GitHub <https://github.com/DavidMacDonald>
>
> www.Can-Adapt.com <http://www.can-adapt.com/>
>
>
>
> *  Adapting the web to all users*
> *            Including those with disabilities*
>
> If you are not the intended recipient, please review our privacy policy
> <http://www.davidmacd.com/disclaimer.html>
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