This tip is for Firefox users only, so those of you who only use Internet Explorer are out of luck this time. I do have an upcoming tip that will show you how you can get custom colors on IE, but it's not nearly as cool as this one. :(
Here's how to use ColorZilla:
1. Install ColorZilla by clicking here.
2. Find a color on the web that you want the RGB or hex values for. Click on the eyedropper icon in the bottom left corner of your screen (circled in purple in the image below). If you do not see an eyedropper icon, right click on the page and select ColorZilla-->eyedropper.
3. Move your mouse (represented by the cross in the image above) to the color that you would like to copy, then look down in the lower left corner of your screen. The RGB value and six digit hex code will be shown. Write these codes down for future reference.
Another great feature of ColorZilla is the Webpage DOM Color Analyzer. You can get the color scheme for any page by right-clicking on the page and selecting ColorZilla-->Webpage DOM Color Analyzer. A palette containing most of the colors on the page will appear at the bottom of your screen. Simply click on the color that you want and the RGB and hex values will pop up. Too cool!
Custom Colors For Your Blog - SUPER Easy!