<P> The original color circle of Isaac Newton showed only the spectral hues and was provided to illustrate a rule for the color of mixtures of lights , that these could be approximately predicted from the center of gravity of the numbers of `` rays '' of each spectral color present ( represented in his diagram by small circles ) . The divisions of Newton 's circle are of unequal size , being based on the intervals of a Dorian musical scale . Most later color circles include the purples , however , between red and violet , and have equal - sized hue divisions . Color scientists and psychologists often use the additive primaries , red , green and blue ; and often refer to their arrangement around a circle as a color circle as opposed to a color wheel . </P>
<P> The original color circle of Isaac Newton showed only the spectral hues and was provided to illustrate a rule for the color of mixtures of lights , that these could be approximately predicted from the center of gravity of the numbers of `` rays '' of each spectral color present ( represented in his diagram by small circles ) . The divisions of Newton 's circle are of unequal size , being based on the intervals of a Dorian musical scale . Most later color circles include the purples , however , between red and violet , and have equal - sized hue divisions . Color scientists and psychologists often use the additive primaries , red , green and blue ; and often refer to their arrangement around a circle as a color circle as opposed to a color wheel . </P>
who introduced the color wheel to represent the organization of color
who introduced the color wheel to represent the organization of color
Isaac Newton
Isaac Newton