Rhino Beta _eyedropper color not give the same color .
Beta_ test _ color.3dm (41.1 KB)
Are those shaded surfaces? If so you will never have the pure color, there is the lighting effect involved. So if you attribute red 255,0,0 to a surface as a display color, it will not have that value with the eyedropper.
Try it with hatches and see if it works as expected.