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Wordsmithing of Issue #10 User Interface Component Contrast (Minimum)

From: Glenda Sims <glenda.sims@deque.com>
Date: Thu, 27 Apr 2017 11:40:44 -0500
Message-ID: <CAH2ngESQt0D2c3cpM92i3J15bWOOZ+O_qs0oxex5UyTZQk_SyQ@mail.gmail.com>
To: public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>
Oh awesome LVTF,

As your time permits, please take a look at the latest, tighter, clearer
wording for Issue #10 User Interface Component Contrast
(Minimum)...inspired by Jared Smith :)

1.4.14 User Interface Component Contrast (Minimum)

All essential
<https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>
visual
identifiers that a user interface component
<https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-user-interface-component>
is
interactive have a contrast ratio
<https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-contrast-ratio>
of
at least 4.5:1 against the immediate surrounding color(s), except for the
following situations:


   - *Thicker:* A contrast ratio
      <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-contrast-ratio>
of
      at least 3:1 is required where the minimum width and height are
at least 3 CSS
      pixels
      <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-css-pixel>,
      for the essential
      <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>
visual
      identifier.
      - *Inactive:* Disabled or otherwise inactive user interface components
      <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-user-interface-component>
are
      exempt from this requirement.

Note about essential
<https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>
visual
identifiers that a user interface component
<https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-user-interface-component>
is
interactive: Examples of visual indication that a component is interactive
include a border, edge, icon, focus indicator, selection indicator or other
visual indication (which do not rely on color alone).

"What changed?" you ask:

I answer:

"All essential visual identifiers of user interface components have a
contrast ratio of at least 4.5:1 against the immediate surrounding color(s)"

changed to

"All essential visual identifiers that a user interface component is
interactive have a contrast ratio of at least 4.5:1 against the immediate
surrounding color(s)"


Let me know if you have any questions or concerns.
Peace out,
Glenda

glenda sims    |   team a11y lead   |    deque.com    |    512.963.3773


*web for everyone. web on everything.* -  w3 goals
Received on Thursday, 27 April 2017 16:41:18 UTC

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