WebAIM - Web Accessibility In Mind

E-mail List Archives

Re: 1.4.1 use of color for state indicator

for

From: glen walker
Date: Mar 9, 2020 4:40AM

But from a strict reading of 1.4.1, it sounds like a failure. Color *is*
being used as the only indicator. Whether it's a dramatic change isn't
implied in the success criterion.

My example was intentionally extreme.

When would an example cross the border of being extreme, whether black and
white, or reversal of foreground and background colors, to something that's
still maybe ok to when it becomes not ok?

So if the buttons have a white background initially, and the selected
button has a blue background, is that a failure? If the blue is still dark
enough that it passes, when does it not pass? As the blue gets lighter?
As the contrast ratio approaches 4.5?

That seems a bit subjective. Color is still being used as the only means
to convey information. Or should 1.4.1 really be "if color is the only
means" *and* contrast is below a threshold, then it fails?




On Mon, Mar 9, 2020 at 3:06 AM Patrick H. Lauke < <EMAIL REMOVED> >
wrote:

> Additionally, I'd note that the SC 1,4,1 Use of Color is...a bit
> problematic/internally inconsistent in its understanding document, in my
> view...
>
> https://github.com/w3c/wcag/issues/1076
>
> --
> Patrick H. Lauke
>
> https://www.splintered.co.uk/ | https://github.com/patrickhlauke
> https://flickr.com/photos/redux/ | https://www.deviantart.com/redux
> twitter: @patrick_h_lauke | skype: patrick_h_lauke
> > > > >