First a few definitions for beginners.
Primary Colors: Red, yellow and blue – cannot be mixed from any other colors.
Secondary Colors: Two primary colors mixed together resulting in orange, green and violet.
Tertiary (Intermediate) Colors: One primary and one secondary mixed together.
Aggressive (Warm) Colors: Reds, oranges and yellows.
Receding (Cool) Colors: Greens, blues and violets.
Hue: Another name for color.
Tint: Color + White
Tone: Color + Gray
Shade: Color + Black
Key Color: Dominant color in a color scheme or mixture.
Neutral Grey: Combination of black and white.
Intensity or Chroma: The brightness or dullness of a color.
Value: The lightness or darkness of a color.
Mono-chromatic: Using any shade, tint, or tones of one color.
Analogous: Using any shades, tints, or tones of colors that lie adjacent to each other on the wheel.
Achromatic: A colorless scheme using, blacks, whites and grays.
Complementary Colors: Combing a shade, tint or tone of one color and the color opposite on the wheel. Example blue and orange.
Split Complementary: Choosing one color and using the color on each side of the complement on the color wheel.
Diad: Using two colors that are two colors apart on the color wheel. Example red and orange.
Triad: Color scheme in which three colors equally spaced from each other. Example the three primary colors – red blue and yellow.
Tetrad: A contrast of four or more colors on the wheel.
Quoted from Pocket Color Wheel