Thanks for the photo.  Looks like "sand" or "taupe" to me which are colors that I thought of.  I saw a poster in one of my books that showed a yellow color.  As for that diorama at LeMans. I have a photo of it and have some major problems with it.  First, it has five pits in each pit block.  There were four.  The 1956 pit design had five pits per block.  Second, it shows the hospitality suites with an office and a single open room on the south end.  Every suite block was symmetric with an open room on either side of each office.  Finally, the scoring office is jutting forward toward the track.  The scoring office was set back in a similar fashion to the suites.  As for the rest of it I am in awe of its creator.  The figures alone are to die for.  There must be 200, and all dressed (painted) correctly for the period.  The time spent on the scoring tower and all of the other details is incredible.  The cars have hoods and doors that open and figures that actually look like they are working on the cars.  You can almost see the Jaguars overheating.

Eventually I plan to photograph all my little cars in front of these buildings and build a web site for those photos so I figured that I should try to make it look correct for those that have actually been there.

I'm making an elaborate diorama of the pit lane that existed between 1949 and 1956 and have built the ACO welcome house, four blocks of four pits each, two hospitality suite blocks and the scoring block but now I'm I'm stuck.  What was the general color (or colour) of these buildings. All I have are black and white pictures except for one 1952 shot of the Fiat pits that seem to indicate that the general color was a faded pea green.  After all this work I refuse to paint these buildings a faded pea green!  The B&W photos from 1950 (Cunningham Photo Album) seem to indicate that there is considerable contrast between the base color (somewhat darkish) and the trim.  If the trim was white then the base color could be blue (French blue?) or rose or almost anything, BUT NOT A FADED PEA GREEN!  Help.