Use JuicyStudio Colour Contrast Analyser to design visually accessible sites

I loved the old JuicyStudio colour contrast and brightness tools and now they've been replaced by the Luminosity Colour Contrast Ratio Analyser.

If you can look beyond the tongue-twisting name, you'll find the new tool is based upon Web Content Accessibility Guidelines (WCAG) 2.0's algorithm and will tell you what level of WCAG compliance the tested section of your site has reached.

I have just discovered that the contrast ratio for visited links on the background of this site passes Level AA for large text only (at least 18 point or 14 point bold). This is not good news as the text is small. The good news is that this is a really simple online tool to use, and now that I know the contrast isn't sufficient (as I suspected), I can do something about it.