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

From: Subramanian, Poornima (PCL) <psubramanian@hagroup.com>
Date: Thu, 28 Sep 2017 15:17:21 +0000
To: Chaals McCathie Nevile <chaals@yandex.ru>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Message-ID: <CY4PR0701MB3649BAA29CB465E848A836C9C0790@CY4PR0701MB3649.namprd07.prod.outlook.com>
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?

Accessibility Tester & Consultant

-----Original Message-----
From: Chaals McCathie Nevile [mailto:chaals@yandex.ru]
Sent: Thursday, September 28, 2017 10:42 AM
To: w3c-wai-ig@w3.org
Subject: Re: Color Contrast (Minimum) Level AA requirement for "Photography" image

On Thu, 28 Sep 2017 15:54:42 +0200, Subramanian, Poornima (PCL) <psubramanian@hagroup.com<mailto:psubramanian@hagroup.com>> wrote:

> I would like to ask the team on one specific scenario for ‘Color
> Contrast’ requirement. Please advise if this is the right >forum to
> ask such questions.

This is a perfectly reasonable forum to ask such questions.


Chaals is Charles McCathie Nevile
find more at http://yandex.com

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(image/png attachment: Brochure-Image-Sample.PNG)

(image/png attachment: 02-Brochure-Image-Sample.PNG)

Received on Thursday, 28 September 2017 15:17:49 UTC

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