WebAIM - Web Accessibility In Mind

E-mail List Archives

Re: size of text when determining color contrast

for

From: John Foliot
Date: Oct 6, 2014 11:33AM


Jukka K. Korpela wrote:
>
> I think that despite all the vagueness and obscurity, the WCAG 2.0
> definition is still useful. In modern CSS specs, 1pt equals 4/3
> "pixels":
> http://www.w3.org/TR/css3-values/#absolute-lengths
>
> It's the "pixel" (px) concept that varies by device. Well, at least to
> the same extent as any other CSS "absolute" length unit.

I recommend the following:
http://www.quirksmode.org/blog/archives/2010/04/a_pixel_is_not.html
or this YouTube video:
https://www.youtube.com/watch?v=4wscVOXjIzQ (yes, that would be my hat in
the front row...)

JF