Summary
The Juicy Studio Luminosity Contrast Ratio Analyser and the example luminosity contrast ratios have been updated to match the latest version of the draft Web Content Accessibility Guidelines 2.0.
Author: Gez Lemon
The draft Web Content Accessibility Guidelines 2.0 were updated last Thursday, and one of the things that was updated was the algorithm to determine whether the contrast between foreground and background colours is sufficient.
As well as updating the algorithm itself, the thresholds have been changed to consider large and bold text (at least 18 point or 14 point bold). The new thresholds are:
Level AA Threshold
- Large text (and images of large text) have a contrast ratio of at least
3:1 - Regular text (and images of regular text) have a contrast ratio of at least
5:1
Level AAA Threshold
- Large text (and images of large text) have a contrast ratio of at least
5:1 - Regular text (and images of regular text) have a contrast ratio of at least
7:1
I've updated the Luminosity Contrast Ratio Analyser and the example luminosity contrast ratios to take into account the amendments. I will update the Firefox colour contrast extension as soon as I get a chance.
Category: Accessibility.