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Re: Chrome color contrast analyzer Pixel radius

for

From: Kelly Lupo
Date: Jan 10, 2016 11:38AM

I don't think the pictures came through... :(

Kelly

On Sun, Jan 10, 2016 at 6:22 AM, Kevin Prince < <EMAIL REMOVED> >
wrote:

> If you have a block colour then pixel radius 1 is as good as any other
> however text is often presented in a smoothed manner by shading the
> absolute colour with lighter ones. This makes it both appear less blocky
> but also less intense. If you use 2 or 3 radius you'll get an average value
> which will be closer to the effective contrast between foreground and
> background.
>
> Here's a pic I prepared for explaining just this scenario. It's showing a
> spot colour of 83,83,83 but if you move the block just 1 pixel to the left
> you are still in the letter form but the average value will be less and the
> overall contrast reduced.
>
>
> Access1in5
> 0212220638
> 039290692
> Independent Accessibility and IT Consultancy.
>
>
>
> > On 5/01/2016, at 06:11, Alan Zaitchik < <EMAIL REMOVED> > wrote:
> >
> > Anyone know the answer to this one?
> > Using the Google Chrome color contrast test there is an option to set
> the "pixel radius" to 1, 2, or 3.
> > Anyone know which value to use under which circumstances? I have pages
> that fail with radius 1 but pass with radius 2.
> > Is this bad or not?
> > A
> >
> > > > > > > > >
> > > > >