A point to keep in mind. When colours where made up by the manufacture they didin't use a formula. They would make up the colour they finalized for that year and would spray it out on colour cards. Then they would send these cards to the paint companys to make up and formulate the colours. They where allowed to be 5% darker or lighter from the standard. So a 10% variance could happen. Now you know why you see the same colour with different shades on different cars. I remember working at a Chrysler dealership in the 70's and a transporter came in with new cars. Here's 3 new cars 3 different shades of the same colour. The painters standing beside me and says "So, which one do I match"!! JP