Chris Ashton

dai11y 04/11/2019

Your daily dose of a11y:

The Myths of Color Contrast Accessibility

  • TLDR: this article refutes some common accessibility guidance, such as the need to use more than just color to denote information (it argues that contrast alone can be sufficient if denoting toggle state. But for something like error state, an additional cue such as icon is required). There’s a really interesting screenshot early in the article showing the contrast ratios of two buttons: one comfortably passes WCAG guidelines and the other doesn’t, despite being easier to read. Well worth reading in full.
Blue button with white text fails WCAG with contrast ratio 2.94, whereas version with black text passes with contrast ratio 5.41 despite being anecdotally harder to read.

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