Check out the photo of the body tag.  The paint code is missing.  Here's why:

The blank indicates that you have a special order paint car. Sometimes, a dash will replace a code in those instances or the word SPEC. Even if a color is in the catalog, it will not necessarily come up as the regular code if it is not regularly offered in that particular model. A special code notation can be used instead. This will vary from year to year and even by assembly plant.