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A Venn diagram for seven colors formed by three overlapping circles with intersection areas for the subtractive color theory, the theory of the mixture of inks. There are different models. According to the model CMY, primary colors are cyan, magenta and yellow and the opposite colors are red, green, and blue, respectively. According to the traditional RYB model, primary colors are red, yellow and blue, and secondary colours are orange, green and purple coloring page