A printer , comprising: a printhead to deposit printing fluids onto media; an ink set comprising a plurality of color inks and an opaque white ink; a controller to control the printhead, the controller having a processor; a memory coupled to the controller, the memory having a media calibration module loaded therein, the media calibration module, when executed by the processor, being configured to cause the printer to modify an original color look up table (CLUT) stored in the memory into a modified CLUT for use on colored media, where the original CLUT is modified using a measured color of the colored media, where the original CLUT is for use on any colored media, and wherein the original CLUT has the opaque white ink set at 100% for every output color; wherein modifying the original CLUT comprises: for each output color in the original CLUT: determining, for each color ink in the plurality of color inks, a ratio between (i) an amount of the color ink in the output color, and (ii) an amount of the color ink in a color in the original CLUT, the color in the original CLUT corresponding to the measured color of the media; identifying, from the determined ratios, a smallest non-zero ratio, SC max ; determining, for each color ink in the plurality of color inks, a modified ink amount based on SC max ; and determining, for the opaque white ink, a modified ink amount based on SC max , the modified ink amount for the opaque white ink being less than 100%. a printhead to deposit printing fluids onto media; an ink set comprising a plurality of color inks and an opaque white ink; a controller to control the printhead, the controller having a processor; a memory coupled to the controller, the memory having a media calibration module loaded therein, the media calibration module, when executed by the processor, being configured to cause the printer to modify an original color look up table (CLUT) stored in the memory into a modified CLUT for use on colored media, where the original CLUT is modified using a measured color of the colored media, where the original CLUT is for use on any colored media, and wherein the original CLUT has the opaque white ink set at 100% for every output color; wherein modifying the original CLUT comprises: for each output color in the original CLUT: determining, for each color ink in the plurality of color inks, a ratio between (i) an amount of the color ink in the output color, and (ii) an amount of the color ink in a color in the original CLUT, the color in the original CLUT corresponding to the measured color of the media; identifying, from the determined ratios, a smallest non-zero ratio, SC max ; determining, for each color ink in the plurality of color inks, a modified ink amount based on SC max ; and determining, for the opaque white ink, a modified ink amount based on SC max , the modified ink amount for the opaque white ink being less than 100%. determining, for each color ink in the plurality of color inks, a ratio between (i) an amount of the color ink in the output color, and (ii) an amount of the color ink in a color in the original CLUT, the color in the original CLUT corresponding to the measured color of the media; identifying, from the determined ratios, a smallest non-zero ratio, SC max ; determining, for each color ink in the plurality of color inks, a modified ink amount based on SC max ; and determining, for the opaque white ink, a modified ink amount based on SC max , the modified ink amount for the opaque white ink being less than 100%. <EOS>