Color

The use of color to embed meaning can have two approaches:

1 -As in Antiquity, for example, Aristoteles< or Goethe< and

2 - The symbolic color signficado in the mind of the Middle Ages

Color is a basic framework of perception and some powerful brains conceptualized about it. Newton was the first within the scientific concept that prevails today

For practical use, the scientific concept developed by Thomas Young, which can be seen looking closely at the screen of a TV, or watching a painter mixing colors on his palette.

For a "comprehensive" vision, I suggest reading the Wikipedia entry on the color on perception properties.