Photo by Alexander Grey: https://www.pexels.com/photo/person-with-body-painting-1209843/ As all we know, our world is full of colors. What is your favorite color? My favorite one is Green. I don't know why but I really like green. Let me know yours in the comment section. However, this post is not about our favorite colors, from childhood I wondered, what color is and how color is made. As I grew, I realized we see colors as a result of reflection. I'm pretty sure that everyone who reads this knows it very well. When light is collapsed with an atom, the atom absorbs specific energy. it doesn't absorb every radiation that carries different energy levels. For instance, imagine that there is an atom that absorbs every absorbs every energy level but without the radiation of 450 nm wavelength. So, only that radiation comes to our eyes and we are able to see the blue color. That is how we see an object in blue. But my question is, what if we provide all the other radiations w