Well, technically you're right, but I don't think the pigments in our skin made huge evolutionary advancements in ~100 years. I'd guess people were working more outdoors, but that's it.

So if you were to recolor a film you can take skin colors from today. But an advert, car color or fabric is incredibly difficult, even if you have the original, since the material will have degraded. Even if you repaint it with the original paint it will look different, since the paint will have changed, or if you use new paint the process to manufacture the paint (->led).

It might as well be another universe.