File talk:1977-Triumph-T140-Blue-9886-6.jpg

I am trying to locate the color codes for the petrol tank - any ideas how to get em please. It is a 1977 t140v and is metalic blue with ivory white scallops. I know there were only a few went out of meriden in this color that year and it was not the normal color for that year - no-one can help me so far.