Paint from the same manufacturer will look different in many different situations. Time in the sun is the most decisive of all.
Fading, bleaching, even wholesale changes in color are normal.
Find a make of car that has been in production for a while.
Go to a car dealership, pick a color, and look at the new ones when they come in and compare to older ones on the lot, then to a junkyard to see one.
Good fast work on the icon of Nazi aggression!
Nothing says World War Two like a Stuka in LW livery!