If a color is made lighter by adding white, the result is called a tint. If black is added, the darker version is called a shade. And if gray is added, the result is a different tone
Analogous color schemes use colors that are next to each other on the color wheel. They usually match well and create serene and comfortable designs.
Complementary Colors are any two Hues positioned exactly opposite each other on the Basic Color Wheel.
The split-complementary color scheme is a variation of the complementary color scheme. In addition to the base color, it uses the two colors adjacent to its complement.
A triadic color scheme uses colors that are evenly spaced around the color wheel.
The rectangle or tetradic color scheme uses four colors arranged into two complementary pairs.