No paint is gonna match 100% every time, you'll have better luck if its from the same batch, but still wont match 100%. Now add into the effect of having a custom mixed color, you may have a color code, but the further you get and the more you have to mix the harder and harder it will be to get the color down. My car for instance, has a custom 1 off obsidian gray metallic, that also has pearls in the mix to help it change colors, i am totally screwed if i need to repaint anything on my car, my painter spent 3 weeks trying to get to the color to match and still it didnt happen. Thats with a paint code. He mention more pearl. Thats going to much thing up and i can guarantee it.
Heres an example, first picture looks like simple metallic gray
Second is one a bit later and a different shade of light. Notice the more blue hues?
Thats what pearls do to your car, and they will gum up the works of paint matching for sure.
Heres an example, first picture looks like simple metallic gray
Second is one a bit later and a different shade of light. Notice the more blue hues?
Thats what pearls do to your car, and they will gum up the works of paint matching for sure.