W3C home > Mailing lists > Public > public-low-vision-a11y-tf@w3.org > April 2017

Re: User Interface Contrast Ratio Thresholds - sandbox

From: Marla Runyan <marlarunyan1@gmail.com>
Date: Tue, 11 Apr 2017 20:58:05 -0400
Message-Id: <E8F9CCB5-9B10-4E40-B3FF-277D1248FB99@gmail.com>
Cc: public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>, Glenda Sims <glenda.sims@deque.com>
To: Jim Allan <jimallan@tsbvi.edu>
Thanks, Jim!  This is great!
We have lots to test out!

Marla 

> On Apr 11, 2017, at 3:49 PM, Jim Allan <jimallan@tsbvi.edu> wrote:
> 
> I fiddled a bit with Marla's excellent work
> Added 3px borders for 3:1, 2.5:1, and 2:1,  some buttons have these ratios with button text and button background, other buttons have border contrast with page background
> also added 4.5:1 contrast with 1px borders. 
> 
> https://jsfiddle.net/a11y_guy/p9db2f6w/33/ <https://jsfiddle.net/a11y_guy/p9db2f6w/33/>
> 
> Thoughts
> 
> now to see if we can turn it into something that can collect some data.
> 
> On Mon, Apr 10, 2017 at 11:43 AM, Wayne Dick <wayneedick@gmail.com <mailto:wayneedick@gmail.com>> wrote:
> This is very nice.  
> 
> 
> On Sunday, April 9, 2017, Marla Runyan <marlarunyan1@gmail.com <mailto:marlarunyan1@gmail.com>> wrote:
> > LVTF,
> > Here is a sandbox of various form elements with different border or fill contrast ratios ranging from 3:1 to 2:1. 
> > Note that these are intended to test either the border against the page background, or the fill against the page background. The text inside buttons should still meet SC 1.4.3.
> > We may want to consider a different ratio requirement between the element background /page background ratio — from the element border/page background ratio. 
> > https://jsfiddle.net/p9db2f6w/3/ <https://jsfiddle.net/p9db2f6w/3/>
> > Thank you,
> > Marla 
> 
> 
> 
> -- 
> Jim Allan, Accessibility Coordinator
> Texas School for the Blind and Visually Impaired
> 1100 W. 45th St., Austin, Texas 78756
> voice 512.206.9315    fax: 512.206.9264  http://www.tsbvi.edu/ <http://www.tsbvi.edu/>
> "We shape our tools and thereafter our tools shape us." McLuhan, 1964
Received on Wednesday, 12 April 2017 00:58:39 UTC

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