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Re: Proposed wordsmithing for Contrast (Minimum) on interactive elements

From: Laura Carlson <laura.lee.carlson@gmail.com>
Date: Fri, 11 Nov 2016 11:56:30 -0600
Message-ID: <CAOavpvegENf=z8Sudoz6+=_VnrQyMuAnsP_pqWp+tLsOPJEguQ@mail.gmail.com>
To: Glenda Sims <glenda.sims@deque.com>
Cc: public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>
+1

Kindest regards,
Laura
On Nov 11, 2016 8:49 AM, "Glenda Sims" <glenda.sims@deque.com> wrote:

> Oh wonderful LVTF,
>
> David MacDonald and Alastair Campbell have closely reviewed the proposed
> WCAG SC for Interactive Element Contrast (Minimum) at
> https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Contrast_(Minimum)
>
> And I think they have made a fabulous suggestion for rewording, that makes
> it easier to read (and understand) this proposed SC, while simulatenously
> maintaing all the of the meaning and intent.
>
> The current (long winded) wording is:
>
>
>    1. The visual presentation of important (non-text) information in an
>    interactive image has a contrast ratio of at least 4.5:1 against the
>    immediate surrounding background.
>    2. The visual presentation of a disabled interactive element has a
>    contrast ratio of at least 3:1 against the immediate surrounding background.
>    3. The visual presentation of input elements or the border(s) of input
>    elements has a contrast ratio of at least 4.5:1 against the immediate
>    surrounding background, except for the following:
>       - Medium Width Border for Input Elements: A medium width border (or
>       wider) for input elements has a contrast ratio of at least 3:1 against the
>       immediate surrounding background;
>    4. The visual presentation of focus indicators and selected indicators
>    has a contrast ratio of at least 4.5:1 against the immediate surrounding
>    background, except for the following:
>       - Medium Focus Indicator: Medium focus indicator has a contrast
>       ratio of at least 3:1 against the immediate surrounding background;
>       - Medium Selected Indicator: Medium selected indicator has a
>       contrast ratio of at least 3:1 against the immediate surrounding
>       background;.
>       - Focus Indicator for an interactive logo image: Focus indicator
>       for an interactive logo image has a contrast ratio of at least 3:1 against
>       the immediate surrounding background.
>
> The rewording proposed by David MacDonald & Alastair Campbell is:
>
> A mechanism is available to ensure the visual presentation of the
> following have a contrast ratio of at least 4.5:1 against the immediate
> surrounding background :
>
>
>    - important (non-text) information in an interactive image;
>    - input elements or the border(s) of input elements;
>    - focus and select indicators;
>
> except for the following which have a contrast ratio of at least 3:1.
>
>
>    - disabled interactive elements;
>       - thicker lines: where the minimum width of the line is at least
>       3px;
>       - focus Indicators for an interactive logo image;
>
> I'm in 100% favor of changing the wording to what David/Alastair have
> proposed.  But before I do that, I wanted to give y'all a chance to give me
> feedback.  If you are in favor of this change, can you respond with +1?  If
> you are opposed...can you respond with a -1 and help us understand what you
> think would be better?
>
> Thanks much,
> G
>
> P.S.  I'll hold off on making this change on the wiki until Monday Nov
> 14th at noon central time.
>
Received on Friday, 11 November 2016 17:57:15 UTC

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