Exactly~! but just so you know if you REALLY focus on white and all its features closely, you see blackness in white, and if you closely focus on the color BLACK (pitch black) than you see whiteness in it. It seems absurd to think such a thing. But its really like that! I guess its a little like everything is nothing, nothing is everything. think about it anything YOU define as NOTHING can also be thought as EVERYTHING, i think the two can be synonyms and blank space might be filled with "nothing" which is actually EVERYTHING b/c its EVERYWHERE. there is no such thing as "nothing" how ever there is such a think as Infinite everything. NOTE: its easier for me to picture EVERYTHINGness then nothingness.
the first color that came into mind for me is just purple... i closed my eyes and imaginied nothing but purple. is that normal?