Pixie is a quite handy alternative of full fledge software. Pixie is a small and portable color picker application with built-in options of copying HTML codes, color mixing and magnify any part of the desktop. Pixie is only 11KB application file. All you need to do is that start the application and drag your mouse over any color, this will display the breakdown of HEX, RGB, HTML, CMYK and HSV color values. Pixie is very useful for developers and designers who prefer to determine these color values more quickly instead of open a full suite image software.
You can use keyboard shortcuts to “Ctrl+Alt+C” to copy HTML, “Ctrl+Alt+X” to open color mixer and “Ctrl+Alt+Z” to open magnifier.
Moreover, displaying current co-ordinates of your mouse pointer is another useful feature of Pixie. Pixie is compatible with Windows 2000, XP, Vista and Windows 7 and you can download it from here.