1. A profile creation method according to which a profile of defining an ink amount is created by determining an ink amount for reproducing a hue value indicated by a lattice point in a device-independent color system, the method comprising: firstly obtaining a first hue value feature representing a variation in a hue value on a first print medium corresponding to a variation in an ink amount up to a limit value of an ink amount which can adhere to the first print medium; secondly obtaining a second hue value feature representing a variation in a hue value in a second print medium, which is different from the first print medium, corresponding to a variation in an ink amount up to a limit value of an ink amount which can adhere to the second print medium; determining a new limit value of the ink amount based on the second hue value feature after approximation by correcting and approximating the second hue value feature to the first hue value feature; determining an ink amount which is equal to or less than the newly determined limit value to execute optimization when the ink amount for reproducing the hue value indicated by the lattice point is determined by the ink amount optimization with the use of an object function for evaluating image quality when a designated amount of ink is made to adhere to the first print medium; and creating a profile for the second print medium, for which the converted ink amount has been defined, by converting the ink amount determined by the optimization with a conversion relationship based on the first hue value feature and the second hue value feature.