Originally Posted by mistryn
From personal expereince the colour of the primer does tend to have an affect on the final colour
for example if the primer was grey and the final colour was alpine white, you may get a different shade say if you used a white primer or black primer
i would say find out what the original primer colour was.
Dont rule out the paintshop may not have mixed the colours correctly
the car primer is black, the bumper was black, when the paint shop painted the bumper (m sport) the first time the paint match was perfect and they gave me the paint calculations to keep for future reference. when they repaired the scratch i gave them the claculations but the colour looked 2 shades too light so it went back and this time it is too dark. i think the first mix was probably correct if they had black primed the bumper first.