General principals of color theory were evident in writings of Leone Battista Alberti (c.1435) and the notebooks of Leonardo da Vinci (c.1490).
The first color wheel was developed by Sir Isaac Newton around the start of the 17th century.
This color wheel was an arrangement of red, orange, yellow, green, blue, indigo and violet on a rotating disk.
Since the origination of the color wheel by Newton, it has become one of the most powerful tools available to artists for explaining the relationship between colors.
The three primary colors in the ARTS are red, blue and yellow.
The three secondary colors are green, orange and purple.
There are six other tertiary colors.
Using the primary colors, you could mix pretty much any color in the spectrum.
This is why a solid knowledge of color theory is so important when it comes to painting and mixing your colors.
This is also why you should always at a very least have the primary colors on your palette.