In the visual arts, color theory is a body of practical guidance to color mixing and the visual effects of a specific colours
colours and its evaluations..primary color, secondary color, and tertiary color
1- Primary colors. From there it developed as an independent artistic tradition with only superficial reference to colorimetry and vision science.[citation needed]
The purpose of color theory range from renaissance fine art to modern commercial advertising. Colours affect our mood and perception.
Color theory is not new but also seen in old traditions. Color was mentioned many times in the ancient bible and every colour has its specific definition and interpretation.
The foundations of pre-20th-century color theory were built around "pure" or ideal colors, characterized by different sensory experiences rather than attributes of the physical world. This has led to a number of inaccuracies in traditional color theory principles that are not always remedied in modern formulations.[citation needed]
Another issue has been the tendency to describe color effects holistically or categorically, for example as a contrast between "yellow" and "blue" conceived as generic colors, when most color effects are due to contrasts on three relative attributes which define all colors:
Value (light vs. dark, or white vs. black),
Chroma [saturation, purity, strength, intensity] (intense vs. dull), and
Hue (e.g. the name of the color family: red, yellow, green, cyan, blue, magenta).
The visual impact of "yellow" vs. "blue" hues in visual design depends on the relative lightness and saturation of the hues.