In comparison to the Austrains' Y139, the blue is lighter and the yellow is a bit paler, but I doubt the yellow should match the GJF and just rough eyeballing my photos of my example verses the photos on VR.net makes me think it's pretty darn close for most of them bar F216 as the stripe's too wide and a second yellow stripe needs to added lower. I'm now thinking it's the Y class that the wrong colour.

I had paint for VR blue and gold mixed for me using colour samples from the real thing, and I can tell you the Austrains Y is pretty close to spot on, so the F is way off. That blue is far too cyan in comparison to the other models.

The Australian importers go to a good deal of trouble to get the VR blue and gold correct, otherwise they would have half the members of this forum up in arms, but there is no evidence that Roco did even the most basic research to find out the real colours. Roco did not even bother to advertise the model here as far as I know.