To provide a color matching device wherein changes of color of light can be presented by a sense of play sensation.

This is the color matching device equipped with light sources 1, 2 and 3 to respectively emit light of red, blue and green, and optical sensors 4, 5 and 6 are installed in which corresponding to the respective light sources 1, 2 and 3, their luminances are capable of being adjusted, and wherein the luminances of the respective light sources 1, 2 and 3 are made adjustable according to the intensity of incident light 7 to enter into these optical sensors 4, 5 and 6.