Color conversion apparatus, color conversion method, and inkjet recording apparatus for producing an image layer with improved precision of color reproducibility

A color conversion apparatus for producing a product including a base layer formed on or above a recording medium using ejected ink droplets of a base color and an image layer formed on the recording medium or on the base layer using ejected ink droplets of a plurality of colors, the color conversion apparatus comprising:

• a color conversion processor that applies a color conversion process adapted for presence or absence of the base layer or for the base color, with respect to an image layer content data representing part or all of the image layer and a base layer content data representing part or all of the base layer corresponding to the image layer content data, at a respective one of positions in an image region indicated by the image layer;
• and
• an image layer data generator that generates image layer data representing ejection-related information of the ink droplets of the plurality of colors using the image layer content data that has been subjected to the color conversion process by the color conversion processor,
• wherein the image layer data includes the ejection-related information generated using a printing condition included in the image layer content data adapted for the base layer content data,
• wherein the color conversion processor reads both of the image layer content data and the base layer content data having a common value in position channels, and performs the color conversion process of the image layer content data adapted for the base layer content data.