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Thread: Contrast ratio on slider

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Number of posts in this thread: 8 (In chronological order)

From: Edelényi Zsolt
Date: Tue, Apr 19 2016 2:21AM
Subject: Contrast ratio on slider
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There is a webdesign trend like the following:
http://progressive.nikadevs.com/?theme=progressive

I wonder if it possible at all to comply with contrast ratio at all?

The background is changing as you scroll, or background is a video.

What do you think?

What if the white letters have a black border?

Maybe you vote that this webdesing cannot be comply with WCAG 2.0 "AA"?





Regards,
Zsolt

From: Joseph Sherman
Date: Tue, Apr 19 2016 7:23AM
Subject: Re: Contrast ratio on slider
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You would need to make sure there is adequate contrast for each background/text combination, just like normally.


Joseph

From: Greg Gamble
Date: Tue, Apr 19 2016 8:17AM
Subject: Re: Contrast ratio on slider
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That's a Parallax type of site ...

Are you talking about the images that are scrolling at a different rate then the rest of the page? I would thing you would handle it as a normal page.


Greg

From: Edelényi Zsolt
Date: Tue, Apr 19 2016 8:42AM
Subject: Re: Contrast ratio on slider
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Thank you. How do you mean: handle it a normal page? I think it impossible
that every part of the background has enough contrast.

What do you think if this theme can be accessible with white letters on
changing background?


Üdvözlettel:

Edelényi Zsolt
www.akadálymentes-honlap.hu <http://www.xn--akadlymentes-honlap-tub.hu/>;
+36 20 561-71-44


2016-04-19 16:17 GMT+02:00 Greg Gamble < = EMAIL ADDRESS REMOVED = >:

> That's a Parallax type of site ...
>
> Are you talking about the images that are scrolling at a different rate
> then the rest of the page? I would thing you would handle it as a normal
> page.
>
>
> Greg
>

From: Greg Gamble
Date: Tue, Apr 19 2016 9:26AM
Subject: Re: Contrast ratio on slider
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I think I understand what you mean ... I'd put the lettering in a container with a transparent background color, that would have the contrast needed. Another, but harder option, would be to have a script to vary the font color dynamically ... open source project anyone?


Greg


From: Edelényi Zsolt
Date: Tue, Apr 19 2016 11:10AM
Subject: Re: Contrast ratio on slider
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Thank you.
Not open source, this theme is envato regular licence.


Üdvözlettel:

Edelényi Zsolt
www.akadálymentes-honlap.hu <http://www.xn--akadlymentes-honlap-tub.hu/>;
+36 20 561-71-44


2016-04-19 17:26 GMT+02:00 Greg Gamble < = EMAIL ADDRESS REMOVED = >:

> I think I understand what you mean ... I'd put the lettering in a
> container with a transparent background color, that would have the contrast
> needed. Another, but harder option, would be to have a script to vary the
> font color dynamically ... open source project anyone?
>
>
> Greg
>
>
>

From: Brian Lovely
Date: Tue, Apr 19 2016 11:49AM
Subject: Re: Contrast ratio on slider
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I kind of hope that the template demo is loaded up with every possibility, but in practice would be implemented with a bit more restraint. It would be a nightmare trying to avoid contrast issues on that demo. Maybe you could provide a button that will allow users to turn off the backgrounds?


Brian Lovely
= EMAIL ADDRESS REMOVED =



> On Apr 19, 2016, at 10:17 AM, Greg Gamble < = EMAIL ADDRESS REMOVED = > wrote:
>
> That's a Parallax type of site ...
>
> Are you talking about the images that are scrolling at a different rate then the rest of the page? I would thing you would handle it as a normal page.
>
>
> Greg
>

From: Greg Gamble
Date: Tue, Apr 19 2016 12:51PM
Subject: Re: Contrast ratio on slider
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I meant someone creating a project to change font color on the fly, depending on the background of the font.

A known background, like in a modal popup, would be best IMO.


Greg