"I am not 100% sold nor 50% sold on the idea that colors are seen only when they are defined" That's because it's not logical. We can tell the difference betwe

"I am not 100% sold nor 50% sold on the idea that colors are seen only when they are defined" That's because it's not logical. We can tell the difference between shades of colors whether we know the names or not. In fact, I see two walls in my house, that are painted the same color, as two different colors based on the lighting. But the color of the wall is defined.