MouseZoom is described as 'nice but small utility. It zooms the current mouse position (50x) and show the color value and the absolute + relative position of the point where the mouse is' and is an app in the Photos & Graphics category. There are more than 50 alternatives to MouseZoom for a variety of platforms, including Windows, Mac, iPhone, Linux and Online / Web-based. The best alternative is Just Color Picker, which is free. Other great apps like MouseZoom are gpick (Free, Open Source), Instant Eyedropper (Free, Open Source), gcolor2 (Free, Open Source) and Sip (Paid).
Instant Eyedropper is a free color detection tool for webmasters that will identify and automatically paste to the clipboard the HTML color code of any pixel on the screen with just a single mouse click.
gcolor2 is a basic colourpicker utility that allows you to select any colour on your screen, and, well, grab it's colour. It also allows you to save the colour you create to a file, which shows up as a list in the application.
The refreshingly simple color picker for developers that instantly samples and encodes any color on your screen. Just one quick click to savor the flavor and you're set! See what’s on special with Sip below.
Magnifixer is a screen magnifier utility. You can place it anywhere on your screen, make it any size you want and select a zoom level. Magnifixer will always show the area of your screen where the mouse cursor resides.
Small utility that can show you coordinates and color of any pixel on your screen in different formats (HEX, HTML, RGB, CMYK, HSV). It's staying on top, displays a color of that pixel under mouse cursor, the program can magnify that zone w/ hotkey.