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

From: <josh@interaccess.ie>
Date: Wed, 02 Nov 2016 10:23:20 +0000
To: "josh@interaccess.ie" <josh@interaccess.ie>, "Patrick H. Lauke" <redux@splintered.co.uk>, w3c-wai-gl@w3.org
Message-Id: <emf2b1cd5d-0e72-403a-82eb-8be723e0492c@josh_machine>
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" <josh@interaccess.ie>
To: "josh@interaccess.ie" <josh@interaccess.ie>; "Patrick H. Lauke" 
<redux@splintered.co.uk>; 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" <josh@interaccess.ie>
>To: "Patrick H. Lauke" <redux@splintered.co.uk>; 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>
>>To: 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 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
>>>
>>>www.splintered.co.uk | https://github.com/patrickhlauke
>>>http://flickr.com/photos/redux/ | http://redux.deviantart.com
>>>twitter: @patrick_h_lauke | skype: patrick_h_lauke
>>>
>>
>>
>
Received on Wednesday, 2 November 2016 10:20:48 UTC

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