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Re: testing for color contrast as a totally blind tester

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From: Birkir R. Gunnarsson
Date: Jan 5, 2013 9:28AM

Hi Bryan and all.

I grudgingly admit my ignorance and have to ask "what is BX"?
Thanks
-B

On 1/5/13, Bryan Garaventa < <EMAIL REMOVED> > wrote:
> It is possible for someone who is totally blind to check color contrast up
> to a point.
>
> If using BX, you can use the HTML map to navigate to a DOM node, press
> ctrl+shift+s twice to show a list of all browser styles applied to the
> element, including background-color and color property values, which can
> then be compared using the checker at
> https://www.ssbbartgroup.com/reference/index.php/Color_Contrast_Checker
>
> James is right, it's necessary for sighted assistance to evaluate background
>
> images and graphic coloration though.
>
>
> ----- Original Message -----
> From: "James Nurthen" < <EMAIL REMOVED> >
> To: < <EMAIL REMOVED> >; "WebAIM Discussion List"
> < <EMAIL REMOVED> >
> Sent: Friday, January 04, 2013 8:03 PM
> Subject: Re: [WebAIM] testing for color contrast as a totally blind tester
>
>
>> It is not possible for someone who is totally blind to check for colour
>> contrast. While automated tools can determine the contrast of simple text
>> on a simple background, there are too many places where automated tools
>> cannot reliably determine the colour contrast.
>> Some examples of these are when using background images, background
>> gradients and background colours using alpha (transparency).
>> Regards,
>> James.
>>
>>
>> On Friday, January 4, 2013, Reinhard Stebner wrote:
>>
>>> Does anyone know of any tools that a totally blind person can use to
>>> test
>>> for color contrast on web sites?
>>>
>>> >>> >>> >>>
>> >> >> >
> > > >