Out of all the colors my favorite one is blue.
That is interesting.  Your favorite color is one of the three primary colors, the other two being green and red.
That's true. Blue seems to be the color used as a calming color, sometimes used to show competence too, big companies used blue a lot, like Facebook.
That is true, wheras green is common in nature, being the color of plants.
Yes, I think it's most common color in nature. Red can symbolize anger, which is interesting because it can also be color of love and passion.
My favorite color is black, which completely absorbs visible light, leaving nothing behind.
It's kind of like white, which reflects all the light instead.
I believe it was Schopenhauer who said that color is "specially modified activity of the retina", if you can believe that.