Windows only: Instant Eyedropper is a simple system tray tool that can identify the colour of any pixel on screen -- a useful trick if you're designing a web site or performing other graphics-related tasks. Just drag the tray icon to the part of the screen whose colour you want to copy, and release. Instant Eyedropper copies the colour code for that pixel onto your clipboard (you can choose from a range of formats), ready for use in your HTML editor or graphics program. This is a simple one-task tool, but if you're trying to experiment with different colour schemes it could save you a lot of hassle. Instant Eyedropper is a free download for Windows users. Thanks Chris A!