Method for color control in printing machines by means of a computer, whereby, as part of a print job to set up the color control, a print substrate is first coated with opaque white and then printed with printing inks, color measuring strips are applied to the opaque white, a measuring device records both opaque white and color measuring strips and the computer The color control for printing inks and opaque white is carried out based on the recorded data of the measuring device, which is characterized in that an inline measuring device is used as the measuring device, this is first calibrated at a fixed position on the printing substrate, then the opaque white application is adjusted and when it falls below a maximum Deviations in both opaque white and printing inks can be controlled by the computer by means of measurements in the color measuring strip.
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