I took an old Honda GXV120 cowl to my local Bunnings for colour matching. After I rejected the local expert's selection (White Knight Rust Guard Flame Red) she applied a small instrument to the cowl I'd brought and read off three primary colour dimensions, then mixed up a sample. However she also painted a sample piece with some of the Flame Red. We agreed that the Flame Red was a better match, though it is difficult to get it exact when the sample cowl was as faded as mine was.
So, if you want to match a colour, find a Bunnings where the colour match expert is a lady of 70-odd who's been doing it a while.
