ask for colour cards of each shade. take them to your car and choose the one that matches, Titan Silver is a bugger for it. i am a panel beater by trade and 1 colour is never just 1... some have even got up to 15 varients, some probably more that i am yet to find. My car, Cosmos Schwartz has 11 variants, from normal, cleaner, darker, redder, greener, coarser, lighter, darker and redder, darker and greener, lighter and redder, lighter and greener all on my R-M Scheme.