I’m of the same opinion as others that whatever the paint used it will still take the same effort and time to apply it, it’s therefore worthwhile trying to get the correct paint or as near as possible for whatever project or seeing if a paint supplier has any details in their records like Farmer has, above.
If in doubt then the best piece of advice is always to have an un-faded piece of the original colour matched, this gives the guarantee that one can always say it was matched to the original machine if anyone challenges (or criticises) it.
Paint colours will always be a thorny issue as not many original specifications are known. Also, what one person deems correct may not suit another and likewise their ideal paint colour or code may be an expensive disappointment for another too.
If I ever compiled a list of ‘ideal’ colours on the website then I think it’d be under the heading “This is how I painted my machine, I like it, I think it’s correct, but no guarantees given if it’s replicated !”.