Color Harmony Rules

(monochromatic)

(analogous)

(complimentary)

(triadic)

all four of these images follow the different color harmony rules.  I found all these pieces of art in an art book called the Usborne Introduction of Art.  Painters, designers and every artist needs to use the rules of color harmony in order to achieve a complete and aesthetically pleasing work of art.   The first one is composed of different shades of blue for the entire thing and ends up being monochromatic.  The second one is analogous because is has three colors that are next to each other on the color wheel.  the third one is complimentary because it has two colors that are opposite from each other on the wheel.  The last picture is Triadic because of the three colors that are 120 degrees way from one other on the color wheel.