CSS Dig gives you a new way to analyze your CSS (using Google Chrome).
Consolidate, refactor, and gawk at the 37 shades of blue your site somehow ended up with. CSS Dig is a Chrome Extension that looks for stylesheets and style blocks on the webpage it's run against and groups declarations together for easy inspection. For example, you can see how many colors are used and how often. This can help you consolidate your styles and help with refactors.