The present study considers a fuzzy color system in which three input fuzzy sets are constructed on a tone triangle. For a given fuzzy input, this system outputs the center of gravity of the three weights that are associated with respective grades. Two fuzzy sets (not black and white) are applied to the tone triangle relationship. By evaluating the attributes of chromaticness, whiteness, and blackness, a target color can be easily obtained as the center of gravity of the resulting fuzzy set. The output of the system is a tone triangle, which includes a compound vector with three weights (scalars) in color space. The difference between the resulting inference output and the transforming output is shown by the nonlinear characteristic between the redness ro of the output (consequent) and the chromaticness co of the output (transformation). The vagueness is influenced by the possibility.
