A color correspondence information generating system (1; 1A) which is configured to generate color correspondence information indicating a correspondence relation between color information and color characteristic information using a first image obtained by capturing first objects under an environment of a light source, the color information representing color in the first image, the color characteristic information indicating a characteristic of the color in the first image, the system comprising: an object database configured to store therein correspondences between recognition information of registered objects for recognizing the respective first objects and the color characteristic information of the registered objects, wherein the color characteristic information and the recognition information have a one-to-one correspondence relation with each other, or the color characteristic information is the recognition information itself; an object recognition section (62; 72) configured to recognize the first objects in the first image from the first image and the recognition information, and to output image regions of the first objects in the first image and first color characteristic information, the first color characteristic information being the color characteristic information corresponding to the first objects; a color correspondence information generation section (63; 73) configured to generate the color correspondence information which is a correspondence relation between the color information and the color characteristic information, using the color information and the first color characteristic information of pixels in the image regions; a color-characteristic-information estimation section (65; 74) configured to estimate second color characteristic information from the first image or a second image and the color correspondence information, the second color characteristic information being color characteristic information of a second object different from the first objects, the first image obtained by capturing the first objects and the second object in a same image, the second image being an image of the second object captured under same light source as the first objects captured in the first image; and a reproduction-color-gamut determination section (64; 75) configured to create a subspace of an RGB space based on pixel values of pixels in regions corresponding to the first objects in the first image, and to generate a reproduction color sufficiency percentage being a ratio of pixel values of pixels in a region corresponding to the second object in the first image or the second image, which are included in the created subspace of the RGB space. an object database configured to store therein correspondences between recognition information of registered objects for recognizing the respective first objects and the color characteristic information of the registered objects, wherein the color characteristic information and the recognition information have a one-to-one correspondence relation with each other, or the color characteristic information is the recognition information itself; an object recognition section (62; 72) configured to recognize the first objects in the first image from the first image and the recognition information, and to output image regions of the first objects in the first image and first color characteristic information, the first color characteristic information being the color characteristic information corresponding to the first objects; a color correspondence information generation section (63; 73) configured to generate the color correspondence information which is a correspondence relation between the color information and the color characteristic information, using the color information and the first color characteristic information of pixels in the image regions; a color-characteristic-information estimation section (65; 74) configured to estimate second color characteristic information from the first image or a second image and the color correspondence information, the second color characteristic information being color characteristic information of a second object different from the first objects, the first image obtained by capturing the first objects and the second object in a same image, the second image being an image of the second object captured under same light source as the first objects captured in the first image; and a reproduction-color-gamut determination section (64; 75) configured to create a subspace of an RGB space based on pixel values of pixels in regions corresponding to the first objects in the first image, and to generate a reproduction color sufficiency percentage being a ratio of pixel values of pixels in a region corresponding to the second object in the first image or the second image, which are included in the created subspace of the RGB space.