ColorMania 

ColorMania is a extended colorpicker with an eyedropper component and a screen magnifier. ColorMania lets you easyly select and modify colors. It's the ideal tool for website and application developers.
color picker color screen magnifier

VCW VicMan's Photo Editor 

With this free image editor, you can turn snapshots into artworks as well as draw your own images using the built-in image enhancement functions. It includes more then 10 drawing tools, more than 30 special effects, and supports 20+ image formats.
vcw scan skin graphics photo editor image gif jpeg graphic web button banner

ColorPicker 

ColorPicker.dll is a free and easy way to add a "color capture" control to your application. This library helps your users to pick RGB colors from any place of the screen.
free new visual basic color programming delphi c++ dll activex vcl screen colorpicker color picker code example