This software appears to be used to select the color of the paint that is going to be used to paint your car. However, it's nowhere explained how and what the codes mean. I've checked official website and you can only download the software. There is a search form as well, but requires that you already know the codes.
Use the email address in the image embedded on website to contact the developers. This way you can ask them about the meaning of codes: http://midomix.net/default.aspx