I’ve heard a few references as to pinks as in uniform colors. What are “pinks”/
They were actually called Pinks and Greens. It was a WWII era dress uniform. Khaki pants with a dark green tunic with belt. It was a pretty sharp uniform. Much better than the 1970s polyester leasure suit we have now for class A dress uniform. There was some talk a couple of years ago about going back to this uniform. I vote we do.
Here are a couple of photos to better illustrate them.
Guy on right.
I think the all khaki uniform may have been called pinks too. It was the familliar khaki pants with a light weight khaki shirt, with or without tie, usually tucked into the button area of the shirt. Here it is. 
Hope that clears it up.
Ok, so that’s what pinks are, but why the name??
In certain light, the khaki looked a pinkish color, hence the “pinks” nickname.
Thank you very much Gino, my grandfather was an army officer, but he passed away before I could ever ask him any questions about his service. (He had a very interesting time in the army- from Pancho Villa and WWI to entering Hiroshima at the end of WWII)
The “pinks” are, in fact a taupe shade, kind of a rosy grey. They’re rather sharp looking, and coupled with a “chocolate” Ike jacket they were extremely impressive. I wish the Army’d go back to them. There have been rumors for as long as I’ve known, but it looks like the Army’s just going to go to the Blues for class A’s. Khakis were referred to as “suntans”, and were a different uniform altogether. Everyone had a khaki uniform, whereas the “pink” trousers were strictly for officer dress uniforms. The khaki trousers were not authorized for wear with the chocolate tunic, although it did happen from time to time.