Pipette Color Sampler is a FREE mac utility the you open like any other program, and it has an eyedropper that you can move to any part of your screen, and click on it, and Pipette will tell you the exact hex color number of the pixel you clicked on. For designers, it’s one of those utilities that you will wonder how you lived without it once you have it. Pipette is for MAC users only, and can be downloaded free HERE at Charcoal Design.
And don’t worry Windows users – I have an equivalent for you! Color Cop is also FREE, and it to will tell you the hex value of any pixel on your screen. You can download it free HERE from Colorcop.net.