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Re: Accessible Infographics Colors?

for

From: Olaf Drümmer
Date: Feb 6, 2015 2:55PM

Already for users without any functional limitation it is useful if there is some redundancy, that makes it secondary whether a certain aspect (e.g. colour contrast as such) is accessible or not (what if you make a B/W copy of the color graphic - why should it cease to work?). Using patterns is an option. Or using an identifying character - much simpler. And: very often some legend explains what each of the colors (or patterns, or characters, …) stands for. Unless the infographic is too complex for that - why not simply add the applicable values next to each entry in the legend?

Olaf


On 6 Feb 2015, at 20:41, david kaplan < <EMAIL REMOVED> > wrote:

> Hi All,
>
> I some questions about infographics (pie charts, bar charts, etc) and color accessibility. Are there any guidelines or articles that you know of on how to make the colors in these cases accessible?
>
> What are the specific instances when the colors need to be accessible in a chart? For example, in a pie chart, do the colors need to be accessible against each other so that each slice's color contrasts properly against the color of the neighboring slice? Or would it be sufficient to just have a white (or other contrasting color) border between each slice?
>
> Textures and patterns are certainly an option. But, for now, I'm more concerned about colors and contrast.
>
> TIA!
>
> David K
> > >