Monochromatic:

Dictionary.com

Having tones of one color in addition of the ground hue.

-having one tone of color going from light to dark or vise versa.

Analogous Color:

 

color-wheel-artist.com: features three or more Hues which are positioned next to each other on the Color Wheel.

-Colors that are next to each other going from one hue to another.

Complementary Colors:

Dictionary.com: one of a pair of primary or secondary colors opposed to theother member of the pair on a schematic chart.

• colors that are across from either other on the color wheel.

Triad and Tertiary Colors: