1. A method of calculating spectral data records for spot colors by way of a computer, the method comprising: generating or selecting spectral characterization data of a printing process; selecting colorimetrically defined spot colors from a color table; calculating a spectrum of the spot colors based on the spectral characterization data on a white printing substrate and on a black printing substrate; calculating a spectrum of halftone spot colors from the spectra of the spot colors on the white substrate and on the black substrate; adapting the spectra of the spot colors to a defined white printing substrate; adapting the spectra of the spot colors to predetermined values from the color table; adapting the spectra of the spot colors to a defined black printing substrate; adapting spectral dot gains to a defined standard; and using the calculated spectral data record for color control in a printing press.