I restored a 1955 A7SS which has a slightly lighter green than the later ones with the black frame. It is referred to in the UK as Citroen silver-green but in France known as Citroen vert-argent. It is an early 70's colour as used on the GS1200 club. I had some original 1955 parts which I got matched at a local paint shop. The frame was Rover Connaught green, not British Racing green which is too pale.