Color theory is a guide to mix colors logically and create visual effects with various color combinations as required. The basics of color theory - the color wheel and color harmony - context of how colors are used. These theories can be used to choose color combinations while painting our house, artwork, fabrics and in any of your design.
1. The Color wheel
A color wheel chart helps us to relate colors with each other and find a color combination logically. There are two color wheels possible - A color wheel formed with 3 Primary colors - Red, Yellow, Blue (RYB) and the other wheel is formed with 4 Primary Colors - RYBG (adding green). The 3-primary color wheel is used for color mixing to bring the particular shade, especially in paints and the 4-primary color wheel is used to relate colors to what we see and how we feel. The Secondary colors are derived from a combination of two primary colors. Tertiary colors are derived from mixing one secondary color and one primary color. Neutral (Achromatic) colors are Grey, Black and Brown - which are not included in the color wheel. Neutral colors can be used to tone down the brightness of the original color wheel pigments. The 4-color wheel can be used to select warmer or cooler shades of the same color. It's outer ring scale shown below signifies red as warmer, yellow as warm, green as cool and blue as cooler. We would suggest to use 4-color wheel for better choices in your art, craftwork, fabrics, or interior design, as it has some feel factor in it.