Color Tools: Color Picker and Color Value Slider
Version Compatibility: Visual Basic 6
Included are two Active-X controls: ColorSpace; a very versatile palette / color-picker, and ValueSlider; which lets you pick from ranges of Red, Green, Blue, Hue, Saturation, Value, Cyan, Magenta, Yellow or shades of a color. It automatically updates with the tones, very nice display (sort of like photoshop). The ColorSpace control can be either a Wheel or rectangular, using HSV computations. Virtually every equation takes the color into HSV space before computations are done, which is part of the reason why they aren't particularly accurate in an RGB setting such as the desktop.
Instructions: Click the link below to download the code. Select 'Save' from the IE popup dialog. Once downloaded, open the .zip file from your local drive using WinZip or a comparable program to view the contents.