©2001-2004 CyLog Software
I wrote RGB-to-HSV some 10 years ago to explain to my students how color models work. Recently, it was modified to be able to create a textual description for the current color (very useful to copy & paste in several computer languages (HTML, Java, Delphi, CSS, etc.). It also computes the nearest web-safe color.
The latest version 1.22, can pick a color from anywhere on the screen. It can take the color from a single pixel or average the color of 3x3 or 5x5 pixels.