To facilitate exact color assignment and color reproduction.

Contour lines 100 and boundary line 101 of a character are drawn on the surface of a color sample 11. This sample is coated with specific color ink of the same formulation recipe on a face part 111 and a color sample display part 112. A corresponding color name 113 is stated thereon. The same contour lines and boundary line as the contour lines and boundary lines described above are drawn on the surface of another color sample 12. Arm parts 121 and the color sample display part 122 are coated with the specific color ink of the same formulation recipe and a corresponding color name 123 is stated thereon. The same contour lines and contour line as the boundary lines and boundary lines described above are drawn on the surface of another color sample 13. A body part 131 and the color sample display part 132 are coated with the specific color ink of the same formulation recipe and a corresponding color name 133 is stated thereon. The formulation recipes of the specific color inks used for the front surfaces are stated on the rear surfaces of these color samples.