This is all I know about the colors, and I've researched them pretty thoroughly. The top chart showing Medium blue is the color. These are early colors. The lower blue would be the Grabber color since it wasn't offered early on, these should would be 72 1/2 - 74 colors.
Many people have tried to get these codes mixed. I don't know of many success stories. I got that picture by simply searching "blue Pantera"