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

From: Joshue O Connor <josh@interaccess.ie>
Date: Fri, 23 Jun 2017 18:38:08 +0100
Message-ID: <594D5200.70604@interaccess.ie>
To: WCAG <w3c-wai-gl@w3.org>
AGWG’ers,

As we have received very positive feedback leading up to this CfC, this 
CfC is agreed on as a consensus opinion of the working group.

This decision will be recorded at 
https://www.w3.org/WAI/GL/wiki/Decisions 
<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FWAI%2FGL%2Fwiki%2FDecisions&data=02%7C01%7C%7C1ab6006ec2be48e88f9008d4a210961e%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636311639507586899&sdata=IafGoKjeQf7zBqxVj8m380hh8%2BWgU1VfPa2tZjq0Bx8%3D&reserved=0>

Thanks

Josh


Joshue O Connor 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 ofuser interface components 
> <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-user-interface-component>have 
> acontrast 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:*Acontrast 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 3CSS pixels
>     <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-css-pixel>,
>     for theessential
>     <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>visual
>     identifier.
>   * *Inactive:*Disabled or otherwise inactiveuser 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 ofessential
>     <https://rawgit.com/w3c/wcag21/user-interface-component-contrast-minimum_ISSUE-10/guidelines/index.html#dfn-essential>visual
>     indicators ofuser 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-contrast-minimum_ISSUE-10/guidelines/index.html#user-interface-component-contrast-minimum 
>
>
>
>
>
> Joshue O Connor wrote:
>> Call For Consensus — ends FridayJune 23rd at 1:00pmBoston 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-contrast-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

-- 
Joshue O Connor
Director | InterAccess.ie
Received on Friday, 23 June 2017 17:38:44 UTC

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