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RE: Re[4]: Colour Luminosity/Contrast for form inputs/controls/components

From: Chakravarthula, Srinivasu <srchakravarthula@informatica.com>
Date: Wed, 2 Nov 2016 10:39:16 +0000
To: Katie Haritos-Shea <ryladog@gmail.com>, Joshue O Connor <josh@interaccess.ie>
CC: Patrick Lauke <redux@splintered.co.uk>, WCAG <w3c-wai-gl@w3.org>
Message-ID: <CY4PR03MB2438B2FD54CEE9375A9DCBFAC8A00@CY4PR03MB2438.namprd03.prod.outlook.com>
Agreed. Creating a new one would be more meaningful.

Best regards,
-Vasu
--
Srinivasu Chakravarthula
Lead Accessibility Consultant
Informatica<http://informatica.com/> Business Solutions Pvt Ltd.,
Work: +91-80-4020-3760 | Cell: +91 99008 10881
Website<http://srinivasu.org/> | Accessibility Blog<http://serveominclusion.com/> | LinkedIn<http://linkedin.com/in/srinivasuc> | Twitter<http://twitter.com/CSrinivasu>

From: Katie Haritos-Shea [mailto:ryladog@gmail.com]
Sent: Wednesday, November 02, 2016 4:04 PM
To: Joshue O Connor <josh@interaccess.ie>
Cc: Patrick Lauke <redux@splintered.co.uk>; WCAG <w3c-wai-gl@w3.org>
Subject: Re: Re[4]: Colour Luminosity/Contrast for form inputs/controls/components


Josh,

We can't extend a SC from 2.0. We can add a new additional one for 2.1.

I don't recall a discussion about UI components and color contrast, it could be we had too much else to worry about.

Many have wanted and frankly needed a SC like this to cover UI controls. So I would totally agree with  creating a new one for 2.1.

Katie Haritos-Shea
703-371-5545

On Nov 2, 2016 6:22 AM, "josh@interaccess.ie<mailto:josh@interaccess.ie>" <josh@interaccess.ie<mailto:josh@interaccess.ie>> wrote:
Some further thoughts:

In terms of minimums for 'inactive UI' components - they should really already have IMO a relatively high
ratio as the provide a visual level of affordance to the end user. So things being greyed out etc until they are
active/selected should be as high as possible - and then obviously higher when 'selected/active'.

Josh

------ Original Message ------
From: "josh@interaccess.ie<mailto:josh@interaccess.ie>" <josh@interaccess.ie<mailto:josh@interaccess.ie>>
To: "josh@interaccess.ie<mailto:josh@interaccess.ie>" <josh@interaccess.ie<mailto:josh@interaccess.ie>>; "Patrick H. Lauke" <redux@splintered.co.uk<mailto:redux@splintered.co.uk>>; w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
Sent: 02/11/2016 10:15:42
Subject: Re[3]: Colour Luminosity/Contrast for form inputs/controls/components
For any of the long serving WG members, do they know why there is no explicit colour luminosity requirements for UI components? That would be interesting for some context and then we can take it from there?

Thanks

Josh

------ Original Message ------
From: "josh@interaccess.ie<mailto:josh@interaccess.ie>" <josh@interaccess.ie<mailto:josh@interaccess.ie>>
To: "Patrick H. Lauke" <redux@splintered.co.uk<mailto:redux@splintered.co.uk>>; w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
Sent: 02/11/2016 10:10:51
Subject: Re[2]: Colour Luminosity/Contrast for form inputs/controls/components
Thanks Patrick.

------ Original Message ------
From: "Patrick H. Lauke" <redux@splintered.co.uk<mailto:redux@splintered.co.uk>>
To: w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
Sent: 02/11/2016 10:01:05
Subject: Re: Colour Luminosity/Contrast for form inputs/controls/components
On 02/11/2016 09:58, josh@interaccess.ie<mailto:josh@interaccess.ie> wrote:
Currently SC 1.4.1 states:

*1.4.1
<http://www.w3.org/TR/2008/REC-WCAG20-20081211/#visual-audio-contrast-without-color>
Use of Color:* Color is not used as the only visual means of conveying
information, indicating an action, prompting a response, or
distinguishing a visual element. (Level A)

To me that would be better as:

*1.4.1
<http://www.w3.org/TR/2008/REC-WCAG20-20081211/#visual-audio-contrast-without-color>
Use of Color:*Color is not used as the only visual means of conveying
information, indicating an action, prompting a response, or
distinguishing a visual element but when it is use a minimum level of
4.5:1  to indicate UI/interactive components (Level A)

I think this is mixing two separate issues here though...
May be so.
you're trying to crowbar a dependency on 1.4.3 into 1.4.1.
Not really. I'm just referencing what is there. Actually it looks to me like a fresh SC for colour luminosity of UI components may be needed. This may be something that the LVTF is looking at but I don't know OTTOMH.

J
At a stretch, I'd say you should move this into a note, rather than the normative text, as a reminder to also check 1.4.3 in any case...but it feels like you're special-casing this (otherwise, why not also say "oh, and make sure it's keyboard accessible..." etc)

P
-- Patrick H. Lauke

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Received on Wednesday, 2 November 2016 10:39:52 UTC

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