Use your mouse as magnifier, color dropper and distance analyzer.
MouseZoom is a nice small utility. It zooms the current mouse position (up to 50x), and shows the color value (RGB, HEX, HLS, CMYK), and the absolute and relative position of the point where the mouse is.
MouseZoom is available in English and German language (auto detection).
That software doesn't record activities, doesn't require runtimes, doesn't require installation, doesn't write to the registry, and doesn't modify files outside of its own directories.