I remain unconvinced that this colour was the same as the pinkish Sand used on P-40s and other USAAF types in the Middle East. I’ve seen it said that it was a US Army Engineers colour.

You may be right as to actual tone and that it was a USAE colour but it was a pinkish sand colour – perhaps a little lighter than the ME colour. However Dana Bell’s researches are well worth considering.

As I suggested this question is better suited for one of the modelling sites as this one is not big on the minutiae of colour schemes.

Also given the environment in which those aircraft operated it tended to fade rather quickly so we are looking at a pale pinkish sand colour.