Tu-2 planes from 1 GMTAP of the Baltic Fleet wore overal light livery in September 1948. It is very probable that the were painted with the gloss light blue-grey A-36g:

Another light blue-grey Tu-2 planes. Although the board numbers are not visible the flying one seems to be the „Red 1“:

Resources & Photos:
http://www.mig3.sovietwarplanes.com/tu-2/tu-2camo/tu-2camo.htm
http://scalemodels.ru/modules/forum/viewforum_f_141.html
http://www.bellabs.ru/51/Interview/Zajfman-5.html
S.V. Ivanov, Vojna v vozduche no. 66 – Tu-2 (Air War no.66 – Tu-2)