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Re: Color Contrast (Minimum) Level AA requirement for "Photography" image

From: Joseph Yang <joesaiyang@gmail.com>
Date: Thu, 28 Sep 2017 15:59:21 +0000
Message-ID: <CAB9Y1+LZU5+MebCmDB_h1L21CWVVqFqqRyXCcgG3d4q+CcaobA@mail.gmail.com>
To: Chaals McCathie Nevile <chaals@yandex.ru>, w3c-wai-ig@w3.org
You should be fine with an alt tag

On Thu, Sep 28, 2017 at 8:58 AM Chaals McCathie Nevile <chaals@yandex.ru>
wrote:

> On Thu, 28 Sep 2017 17:38:02 +0200, Patrick H. Lauke
> <redux@splintered.co.uk> wrote:
>
> > On 28/09/2017 16:17, Subramanian, Poornima (PCL) wrote:
> >> Great, here's my question -
> >> In our application, there are brochure images which are actually the
> >> "photography of cover page" in JPEG format. Though they are photography
> >> images, it has large amount of text in it which does not meet minimum
> >> color contrast ratio.
> >> Attached image is a sample brochure.
> >> I find the below NOTE for the WCAG Reference: 1.4.3 Contrast (Minimum):
> >> The visual presentation of text and images of text has a contrast ratio
> >> of at least 4.5:1
> >> “Note: Images of text do not scale as well as text because they tend to
> >> pixelate. It is also harder to change foreground and background
> >> contrast and color combinations for images of text, which is necessary
> >> for some users. Therefore, we suggest using text wherever possible, and
> >> when not, consider supplying an image of higher resolution.”
> >> Can you please look and advise if the "color contrast” on this image is
> >> required to make this image compliant? Or increasing the resolution of
> >> image alone will be sufficient?
> >> Your suggestions, please?
> >
> > I'm assuming here that the title of the brochures is also presented
> > somewhere nearby as real HTML text.
>
> I assumed they were not and suggested that making that happen would be one
> way to fix the problems. If they are then yes, these would be decorative
> images and you would be fine.
>
> cheers
>
> > If so, arguably those images serve more of a decorative purpose (to give
> > users a flavour/idea of what the brochure looks like), rather than
> > acting to convey text for the user to read. As such, I personally would
> > deem these acceptable as they are.
> >
> > P
>
>
> --
> Chaals is Charles McCathie Nevile
> find more at http://yandex.com
>
>
Received on Thursday, 28 September 2017 15:59:55 UTC

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