I've heard it called white, yellow, even greenish white, & Spiner himself referenced the makeup as gold, which I always took as referring more to the pearlescence than the color itself, like there was gold colored dust in the makeup or something
If the makeup was indeed a consistent color, which it seems like it was, we ought to be able to pin point it, at least in some outdoor scenes under proper light, versus under the ship's lighting
To me, in real light or sunlight his color appears to be Cornsilk. Whereas under the Enterprise lights, or general studio lighting, he looks to be either Eggshell or Bone
Cornsilk
Eggshell or Bone
If the makeup was indeed a consistent color, which it seems like it was, we ought to be able to pin point it, at least in some outdoor scenes under proper light, versus under the ship's lighting
To me, in real light or sunlight his color appears to be Cornsilk. Whereas under the Enterprise lights, or general studio lighting, he looks to be either Eggshell or Bone
Cornsilk

Eggshell or Bone
