id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,focuses 23513,Twenty Thirteen: color contrast should aim for WCAG2 level AA compliance,jorbin,,"With a more complex color palette than the previous black (or gray) on white default themes, we will have to check contrast ratios more carefully, with a goal of 4.5:1 for body text, and 3:1 for large text, as recommended by WCAG 2.0 accessibility guidelines. For example: The contrast between the beige and orange is a bit low. The ratio is currently 3.2:1 with f94a0a being the orange, If we switch to CA3C08, then we can bump the ratio to 4.6:1. Even against white (#fff), the ratio is only 3.5:1. Why is this important: [http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html] explains why 4.5:1 is a minimum that we should aim for. Essentially it greatly will increase the readabilty for people with low visual acuity (roughly people with 20/40 vision). http://leaverou.github.com/contrast-ratio/ was used to check the ratios. Since we're likely to have multiple contrast fixes, let's collect them all in this ticket. ",defect (bug),closed,normal,3.6,Bundled Theme,,normal,fixed,has-patch close,,