1. A color processing method of correcting a profile which holds correspondence between colorimetric data and color data of a device and corresponds to one of recording media, comprising the steps of: obtaining colorimetric data of a first black patch formed on a target recording medium using a profile corresponding to the target recording medium; obtaining colorimetric data of a second black patch formed on a subject recording medium using a profile corresponding to the subject recording medium in case that a user determines that color appearances of the first and second black patches are color-matched by visual observation, wherein glossiness of the subject recording medium is different from glossiness of the target recording medium; calculating a correction amount based on the obtained colorimetric data of the first and second black patches; and correcting colorimetric data in the profile corresponding to the subject recording medium using the calculated correction amount.