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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 12:11PM

Bryan

Brilliant, where could I download/purchase such?
Cheers
-B

On 1/5/13, Bryan Garaventa < <EMAIL REMOVED> > wrote:
> BX is a JAWS script developed by Doug Lee, which allows for DOM tree
> traversal, MSAA traversal, and quite a few other things, geared for blind
> developers to examine runtime objects.
>
> I use this every day for both testing and development.
>
>
> ----- Original Message -----
> From: "Birkir R. Gunnarsson" < <EMAIL REMOVED> >
> To: "WebAIM Discussion List" < <EMAIL REMOVED> >
> Sent: Saturday, January 05, 2013 8:28 AM
> Subject: Re: [WebAIM] testing for color contrast as a totally blind tester
>
>
>> 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?
>>>>>
>>>>> >>>>> >>>>> >>>>>
>>>> >>>> >>>> >>>
>>> >>> >>> >>>
>> >> >> >
> > > >