1. Monochromatic : derived from a single base hue and extended using its shades, tints, and tones (variations of lightness and saturation). 2. Complementary : color hues that are directly opposite each other on the color wheel. 3. Triadic : involve 3 colors that are evenly spaced around the color wheel, forming a triangle and vibrant yet balanced because include colors that are equidistant from each other. 4. Rectangular and Tetradic : involve 4 colors arranged into two complementary pairs. 5. Analogous : consist of colors that are adjacent to each other on the color wheel. Analogous schemes are harmonious and often found in nature. 6. Split Complementary : similar to complementary schemes but instead of using one complementary color, it uses the two colors adjacent to its complement.