This "Russian experiment" is a bit weird, as though it's true that "синий" usually refers to darker colors and "голубой" to the lighter ones, both colors to cho

This "Russian experiment" is a bit weird, as though it's true that "синий" usually refers to darker colors and "голубой" to the lighter ones, both colors to chose from could be referred to as "синий" or "голубой" interchangeably. Actually, it's not that clear what is "синий" and "голубой" anyway: sky is like The "синий", but quite often referred to as "голубой" instead, but somebody's eyes almost never are referred to as "синий": maybe only if you want to emphasize how unusually bright they are. But if your dress would be the same color as the eyes, it could be called "синий" easily. What I'm trying to say, there's no that big difference between these two words in Russian to explain the experiment results, unlike what was shown to us on that video about some African tribe. More like "purple" and "violet" — there clearly is a difference, but many people would fail even to point which one is which, and some might even argue about that.