Color theory
In the visual arts, color
theory is a body of practical guidance to color mixing and the visual effects
of specific color combination. There are also definitions (or categories) of
colors based on the color wheel: primary color, secondary color and tertiary
color. Although color theory principles first appeared in the writings of Leone
Battista Alberti (c.1435) and the notebooks of Leonardo da Vinci (c.1490), a
tradition of "colory theory" began in the 18th century, initially
within a partisan controversy around Isaac Newton's theory of color (Opticks,
1704) and the nature of so-called primary colors. From there it developed as an
independent artistic tradition with only superficial reference to colorimetry
and vision science.
Color theory was originally
formulated in terms of three "primary" or "primitive"
colors—red, yellow and blue (RYB)—because these colors were believed capable of
mixing all other colors.
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