Most years they were Green and Yellow.
There was a year or two that they were Gold and White.
I'm not a Ride-A-Matic expert, but a couple of the guys at the GTTalk forums are.
You might ask them: http://gardentractortalk.com/forums/forum/4-bolens/
In the early 80s I used to look after one badged Howard Bolens that was in a light grey - as far as I know, it was original paint , and was quite old even then.