Qualux SoftProofer gives you an idea what colors would look like if the colors would be converted using a series of given ICC profiles. It is very easy to use. It supports color management and allows to choose ICC profile, set rending intent and black point compensation. Image could be previewed with or without simulate paper/ink black in any times.
The Sample palette allows you to view color value in any area of image. You can view Lab color and device color in the color space of the image under different ICC profile.