I don’t know the paint codes but if I remember correctly the Lawnrider I had was one colour overall with the recessed area on chassis from seat to rear painted a lighter colour green. If you google British Anzani Lawnrider you will see examples with this colour scheme.
I didn’t go last year as I felt attendance was poor the previous year, may be one tractor show too many in a busy calendar. Will have to wait and see what happens next year.