Speaking of 1/72, I'm going to start on my 1/72 Hasegawa A-5, using Colorado decals to make a post war French aircraft. The decals call out for an overall 'light blue'. My best guess on this colour is 'Gris Bleu Clair', which was a light blue grey (more grey then blue) used on the underside of French aircraft in WWII. Since they operated a few of these 190s from 1946-49, it seems a logical conclusion to draw.
I've searched up a couple of colour matches on the 'net, Humbrol 127, 2 parts Tamiya XF-24 to 1 part flat white, and a complicated mix of 4 Humbrol enamels.
At this stage I'll go with the Tamiya mix, unless someone has a better idea (like build a German one)
Cheers
Tony