Why do we see colors?

if you don't know what I'm talking about, just google "that dress" and you'll get a picture of it. When I look at it I see light blue and gold...other people say they see black and blue or white and gold, and that it has something to do with...

I was laying down in my bed and I felt very uneasy. As I was staring into the darkness I began to see colors all over the room. I closed my eyes and reopened them to see a black shadow of what looked like a female ghost standing over me and watching...

Its been happening for a few weeks now, and its starting to freak me out. Sometimes, when i just wake up, some black colors become green (e,g. black hair turns to green) and brown colors become really yellow. This isn't like a hallucination of some sort...

What's the purpose to see colors? Humans and other species see color, but this is not true for all species. So why we need it?

This is really hard to explain, but when i see colors like white, baby blue, baby pink, i get cold. sometimes freezzing. no matter how many blankets i put on i am still cold. When i see colors like red, dark blue, black, and deep purple, i get warm or...

When we see rainbow, we generally see only green, pink and yellow colors and not all seven colors. Why is it so?

I have looked it up before and it said it could be a brain tumor or a migraine headache, but I have been able to do this all of my life and my head never hurts after wards. I have noticed that if I stare intently enough at somebody I can see a shroud...

Why would a member see the groups colors differently than designed? One member sees the border/accent color as the entire background of the post and she cannot read the words. Everyone else sees the white backround and black letters of each post (with...

whenever i rub my eyes i see colors. why. and sometimes for no apperent reason i see black dots y?