1973 Plymouth 340 Information needed

I have a 73 Duster that is currently Sublime. I am finding a bunch of blue paint under the green. I have 73 dealer brouchures and I do not see a match. I think it is B2 and wondered if any were made B2 in 1973(not on paint chart). The car came from Michigan last year. If any one knows anything about this car I would love any info and I would appreciate it. It is a 340 4 speed, Spacesaver, sunroof car. I am finishing putting the 4 speed back in this weekend. Someone put an auto in it before I got it.

Thanks for the input!:read2: