A color chart includes color patches associated with all vertexes of a rectangular parallelepiped defined by a base coloring amount (QCb, QMb, QYb) comprising combinations of minimum coloring amounts QCb, QMb and QYb of monochromes of cyan, magenta and yellow in a coloring amount space represented by three axes of coloring amounts of cyan, magenta and yellow, a maximum coloring amount QCmax of monochrome of cyan, a maximum coloring amount QMmax of monochrome of magenta M, and a maximum coloring amount QYmax of monochrome of yellow Y in the coloring amount space, and in addition a color patch associated with an intermediate point located between two vertexes on a straight line coupling the two vertexes with one another, even if any two vertexes of the rectangular parallelepiped are selected.