The term complementary colours refers to two colours that combine to produce an achromatic colour. Mixing together the three primary colours of pigment (yellow, magenta, and cyan) will result in the three primary colours of light (blue, green, and red) being absorbed. The lack of reflected light will cause the mixture to appear black. Thus, we can see that the three primary colours of light and the three primary colours of pigment are in a complementary relationship with each other. Yellow and blue, magenta and green, and cyan and red are each complementary colour pairs. In addition, mixing the two colours on either side of any of the colours shown in the diagram at left produces the colour in between them. Thus, mixing cyan and yellow produces green, and mixing blue and red produces magenta.