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RE: Question F81 note at end of examples will lead to F2 failure

From: Jonathan Avila <jon.avila@ssbbartgroup.com>
Date: Sun, 23 Oct 2016 19:15:15 +0000
To: Sailesh Panchang <spanchang02@yahoo.com>, WCAG <w3c-wai-gl@w3.org>
Message-ID: <DM5PR03MB27808069E65A57D41D3D834F9BD60@DM5PR03MB2780.namprd03.prod.outlook.com>
> Agreed, the difference may  not be conveyed via color but it is suggesting some semantics or info relationship that is not available via text or programmatic determinable markup.

Right, but this failure is only listed as a failure of SC 1.4.1.  So using bold or lightness is sufficient contrast is acceptable to pass SC 1.4.1.  You are correct that it would still be a failure under SC 1.3.1 unless other methods were used.  I think we should keep the note but perhaps update it to be clear that it would pass the SC associated with the failure only and other SC must be evaluated on their own merits.

Jon

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-----Original Message-----
From: Sailesh Panchang [mailto:spanchang02@yahoo.com] 
Sent: Saturday, October 22, 2016 9:26 AM
To: WCAG
Subject: Question F81 note at end of examples will lead to F2 failure

The note reads:
" Note: In both examples, the color could be used without failure if the text was sufficiently different in visual presentation (e.g. bold or in a different
font) that it would be easily differentiated from the surrounding text if the color were removed. It would also not fail if the color chosen had sufficient luminosity difference (lightness) from the other text that it would be easily be seen as different if viewed in black and white. In these cases - the information would not be displayed in color (hue) alone but also in "presentation" or "lightness" respectively". 

Agreed, the difference may  not be conveyed via color but it is suggesting some semantics or info relationship that is not available via text or programmatic determinable markup. 
That note in the context of the preceding example will allow a developer to use other presentation effect in place of color. Indeed no user, PWD or not, can be 100% sure that the field is mandatory and that is what the color or presentation difference indicates because it is ambiguous to users in general if I may borrow the phrase from SC 2.4.4.

That note  at the end of F81 examples will lead to
F2: Failure of Success Criterion 1.3.1 due to using changes in text presentation to convey information without using the appropriate markup or text

I suggest the placement of the note be reviewed  and perhaps be withdrawn to prevent content authors down  a pitfall.

Thanks,
Sailesh Panchang







Received on Sunday, 23 October 2016 19:15:48 UTC

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