Re: CFC Add User Interface Component Contrast (Minimum) to Editors Draft

+1

On Tue, Jun 20, 2017 at 4:35 PM, Jim Allan <jimallan@tsbvi.edu> wrote:

> +1
>
>
> On Tue, Jun 20, 2017 at 1:52 PM, Joshue O Connor <josh@interaccess.ie>
> wrote:
>
>> Hi all,
>>
>> I placed older SC text into the CFC - The current SC text for this one
>> is: [1]
>>
>> Essential
>> <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>
>>  visual identifiers of user interface components
>> <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-user-interface-component>
>>  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>
>>    - *User agent control:* The color(s) of the user interface component
>>    and any adjacent color(s) are determined by the user agent and are not
>>    modified by the author.
>>
>> Notes§
>> <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#user-interface-component-contrast-minimum>
>>
>>    - Examples of essential
>>    <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>
>>     visual indicators of user interface components
>>    <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-user-interface-component>
>>     may include (a border, edge, or icon), current value (such as
>>    non-text visual indication of aria-valuenow on a slider) and current state
>>    (such as selection indicator, focus indicator) or other essential visual
>>    indication (which do not rely on color alone).
>>    - Under consideration: simplify this Success Criterion by setting the
>>    minimum color contrast requirement to 3:1 and removing any need for
>>    measuring thickness.
>>    - Under consideration: will review to see if it is possible to
>>    combine with proposed WCAG 2.1 SC 1.4.11 Graphics Contrast.
>>
>>
>> Thanks
>>
>> Josh
>>
>> [1] https://rawgit.com/w3c/wcag21/user-interface-component-contr
>> ast-minimum_ISSUE-10/guidelines/index.html#user-interface-
>> component-contrast-minimum
>>
>>
>>
>>
>> Joshue O Connor wrote:
>>
>> Call For Consensus — ends Friday June 23rd at 1:00pm Boston time.
>>
>> The Working Group has reviewed and approved a Success Criterion for
>> inclusion in the Editor’s Draft: "User Interface Component Contrast
>> (Minimum)" with the goal of obtaining additional input external to the
>> working group.
>>
>> SC TEXT:
>>
>> User Interface Component Contrast (Minimum)*:*
>>
>> Essential visual identifiers of user interface components have a contrast
>> ratio of at least 4.5:1 against the immediate surrounding color(s), except
>> for the following situations:
>>
>>    1. *Thicker:* A contrast ratio of at least 3:1 is required where the
>>    minimum width and height are at least 3 CSS pixels, for the essential
>>    visual identifier.
>>    2. *Inactive:* Disabled or otherwise inactive user interface
>>    components are exempt from this requirement.
>>    3. *User agent control:* The color(s) of the user interface component
>>    and any adjacent color(s) are determined by the user agent and are not
>>    modified by the author.
>>
>> Survey results:
>> https://www.w3.org/2002/09/wbs/35422/March14SCReviews/results#xq9
>> GIT Hub: https://github.com/w3c/wcag21/issues/10
>>
>> The new SC can be reviewed here, in the context of the full draft:
>>
>> https://rawgit.com/w3c/wcag21/user-interface-component-contr
>> ast-minimum_ISSUE-10/guidelines/index.html#user-interface-
>> component-contrast-minimum
>>
>> If you have concerns about this proposed consensus position that have not
>> been discussed already and feel that those concerns result in you “not
>> being able to live with” this decision, please let the group know before
>> the CfC deadline.
>>
>> Thanks
>> --
>> Joshue O Connor
>> Director | InterAccess.ie
>>
>>
>> --
>> Joshue O Connor
>> Director | InterAccess.ie
>>
>
>
>
> --
> Jim Allan, Accessibility Coordinator
> Texas School for the Blind and Visually Impaired
> 1100 W. 45th St., Austin, Texas 78756
> voice 512.206.9315 <(512)%20206-9315>    fax: 512.206.9264
> <(512)%20206-9264>  http://www.tsbvi.edu/
> "We shape our tools and thereafter our tools shape us." McLuhan, 1964
>

Received on Tuesday, 20 June 2017 22:25:12 UTC