4/6/2023 0 Comments Color oracle personality testThe most serious problems with this, of course, will be for those with no colour vision at all (monochromacy) or perhaps for those without access to a colour printer. To do so in Illustrator, from the View menu, select Proof Setup, Customize, and then from the Device to Simulate dropdown select sGray. Doing so will give the following result. The consequences of such poor contrast can perhaps be most starkly seen when this image is viewed in grayscale. If you measure the contrast ratio between the orange and blue in the original bar chart above, you will find that it is just 1.1:1, which is far below the 3:1 minimum required by WCAG (SC 1.4.11). New in WCAG 2.1 is the requirement to provide sufficient contrast between adjacent areas of colour in diagrams. And the orange of the Lib Dems is not much better. Useful as the Illustrator Proof Setup tool is, it is also important to check infographics for other, not-so-common forms of colour blindness such as tritanopia (blue-blind colour blindness), or monochromacy (no colour vision).įor example, below is a version of the UK 2017 electoral map with a tritanopia filter across it, as seen in the Color Oracle colour blindness simulator (a free download, which unfortunately does not yet have a working Windows 10 version).Īs can be seen, the constituencies previously indicated by the red of Labour and the darker red of the DUP are now completely indistinguishable from each other.
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