I tried but have not been able to find any color pictures of Chinese Volunteer uniforms, but I'm guessing they are pale green.

https://www.youtube.com/watch?v=SPG5W1bGAeM&t=185s

This video didn't show that particular uniform, but early PLA uniforms seem to be pale green.

I found this:
http://www.diggerhistory.info/pages-enemy/korea.htm

Ron Volstad did the art work for the old dragon Chinese volunteer set. His work is usualy very accurate.

When I researched this many years ago I never could find a good color photo. Reading books and a few vets I talked to my opinion was the uniforms we basically like Soviet stuff from wwii. Basically green to a pale pale green ,almost a very dirty white. Some where light brown to green brown. I think they where made out of any material they had on hand with no real color guide.

Probably "Khaki". There are a hundred different variations of the color.

H.P.

Thanks! But where were the pictures taken?

#1 : People's Liberation Army Museum, Beijing.

#2 : Veterans Memorial Museum, Branson, Missouri

#3 : Dutch Army Museum, Delft, The Netherlands

H.P.