Re: the case of the pink outline

I think the *principle of “delete areas of non-contrast” should be part of
the testing.*

On Tue, Feb 27, 2018 at 3:29 AM, Alastair Campbell <acampbell@nomensa.com>
wrote:

> Hi Glenda,
>
>
>
> It looks like this is a case of adding a border that reduces contrast!?
>
>
>
> The flexibility is about the graphical object, so you can use either the
> white arrow, or the purple border.
>
>
>
> The main answer to your question is: *Use the principle of “delete areas
> of non-contrast”,* if you remove the pink border (e.g. make it white or
> purple), does that pass?
>
>
>
> I.e. select the white arrow and ignore the pink border, so white against
> purple.
>
>
>
> Having “deleted” the pink border, it would still need to make sense as a
> graphical object, you should still understand it.
>
> For example, if the pink border was a larger area, and made an arrow in
> the opposite direction (so white pointed right, within a pink arrow that
> pointed left), you would lose information and it would not pass.
>
>
>
> That makes for an interesting test-case… thanks!
>
>
>
> -Alastair
>
>
>
>
>
>
>
> *From: *Glenda Sims
>
>
>
> Dear LVTF,
>
>
>
> How do we test for contrast on a non-text icon that looks like this:
>
>    - white (#FFFFFF) arrow with a
>    - pink (#FF5FFF) outline on a
>    - purple (#5B30FF) background
>
> [image: Inline image 1]
>
>
>
> In looking at the 3 colors and contrasting them with each other:
>
>    - white (#FFFFFF) to purple (#5B30FF)  = 6.3 to 1 color contrast
>    - white (#FFFFFF) to pink    (#FF5FFF)  = 2.5 to 1 color contrast
>    - pink   (#FF5FFF) to purple (#5B30FF)  = 2.5 to 1 color contrast
>
> Do I have to fail this icon for WCAG 2.1 SC 1.4.11 Non-Text Contrast
> because the pink outline of the arrow does not contrast enough with the
> purple background?
>
>
>
> Or...am I allowed to ignore the pink outline..and compare the white arrow
> to the purple background and let this arrow icon pass 1.4.11 Non-Text
> Contrast.
>
>
>
> My brain keeps telling me I should let this pass...but I'm not sure how to
> articulate that it is okay to ignore the pink outline.  Why do I think it
> is okay to ignore the outline?  Because when I squint, I can almost make
> the pink outline disappear.  But how would I explain to a tester...that it
> is okay to ignore the outline???
>
>
>
> G
>
>
>
>
>
> glenda sims  |   team a11y lead   |    deque.com    |    512.963.3773
> <(512)%20963-3773>
> *web for everyone. web on everything.* -  w3 goals
>
> [image: IAAP International Association of Accessibility Professionals:
> Certified Professional in Accessibility Core Competencies (CPACC)]
>
>
>


-- 
Jim Allan, Accessibility Coordinator
Texas School for the Blind and Visually Impaired
1100 W. 45th St., Austin, Texas 78756
voice 512.206.9315    fax: 512.206.9452 http://www.tsbvi.edu/
"We shape our tools and thereafter our tools shape us." McLuhan, 1964

Received on Tuesday, 27 February 2018 20:49:14 UTC