Can you help me decode my body paint!

Hello all! This is my 1970 Duster. I have a question about the paint. My buildsheet says the body paint is FF4 = Lime Green and the interior is EF8 = Ivy Green. Now I know it has been repainted at one point by a previous owner so the buildsheet wont tell me what color it is today. I know it can very well be a custom paint of course, it's just that I've seen Dusters which at least to me looked very, very close. What do you think, anyone know if there is a code or a name for this paint?