A great way to see what colors are being used across your site, just simply add your url and GET COLOURS. Visit Link
Tag: tool
color.hailpixel.com · Swatch you doing?
A great colour picker too. Move the cursor up and down for brightness, left and right for hue and scroll up and down for saturations. Clicking on the screen saves the current colour and opens another column for you to choose a new one. Visit Link
enquire.js – Awesome Media Queries in JavaScript
A lightweight JavaScript library for handling CSS media queries. Deal with your media queries being matched (and even unmatched!) Respond to browser events with aplomb And if you want to get really fancy, run one-time setup routines http://wickynilliams.github.com/enquire.js/