I'm with the pale yellow crowd... there was a time when I thought the dirty pictures I saw were color enhanced to make it seem whiter... Then I thought it might be because I am a smoker.. All in all, as long as it is pleasurable when it cums out.. don't worry about it. Unless it is red, black, on fire, cheese like in consistency, or powdery like baking soda... you're O.K.
Then again, if it kinda smells like like chlorine musk, it means you are going to die soon.