Color Blender is a Cocoa application that was created for finding hex/rgb values for colors and finding colors in Apple's default color picker that corresponded with hex/rgb values. It is also very helpful when coming up with a color scheme for a web-site or design to blend two colors together to try to find a matching color for your color scheme. You can blend two colors together and find the hex & rgb values for all the three colors.
You can edit the rgb & hex values for the colors. You can easily copy hex/rgb values through the dock menu, allowing quick access while using other applications such as Photoshop or Flash.