A color measuring method in which, by means of a color measuring device, a measuring spot of a measurement object is exposed to illumination light under at least one real illumination direction of the color measuring device and spectral reflection factors ( R i ( λ)) of the measuring light reflected from the measuring spot under at least one real observation direction of the color measuring device are measured, wherein the color measuring method comprises: forming a continuous correction model ( K ( φ)) from the measured reflection factors ( R i ( λ)) and the real illumination and observation directions of the color measuring device, wherein the continuous correction model ( K ( φ)) represents the measured intensity of the measuring light reflected from the measuring spot with changes in the difference between the illumination and observation directions, characterized in that the color measuring method further comprises: correcting the measured reflection factors ( R i ( λ)) based on said correction model ( K ( φ)), taking into account the real and nominal illumination and observation directions of the color measuring device, such that the measured reflection factors ( R i ( λ)) are corrected with respect to measurement errors due to deviations of the real illumination and observation directions of the color measuring device from predetermined nominal illumination and observation directions caused by the measurement geometry of the color measuring device, wherein, for each pairwise combination ( i) of illumination and observation directions, a real brightness reflection factor ( R ( φ ri)) representing the intensity of the measuring light reflected from the measuring spot is calculated from the measured reflection factors ( R i ( λ)), wherein a nominal brightness reflection factor ( R ( φ ni)) is calculated from said real brightness reflection factors ( R ( φ ri)) based on the correction model ( K ( φ)) and the real and nominal illumination and observation directions of the color measuring device, and wherein the measured reflection factors ( R i ( λ)) are corrected based on the real brightness reflection factors ( R(φ ri)) and the nominal brightness reflection factors ( R ( φ ni)). forming a continuous correction model ( K ( φ)) from the measured reflection factors ( R i ( λ)) and the real illumination and observation directions of the color measuring device, wherein the continuous correction model ( K ( φ)) represents the measured intensity of the measuring light reflected from the measuring spot with changes in the difference between the illumination and observation directions, characterized in that the color measuring method further comprises: correcting the measured reflection factors ( R i ( λ)) based on said correction model ( K ( φ)), taking into account the real and nominal illumination and observation directions of the color measuring device, such that the measured reflection factors ( R i ( λ)) are corrected with respect to measurement errors due to deviations of the real illumination and observation directions of the color measuring device from predetermined nominal illumination and observation directions caused by the measurement geometry of the color measuring device, wherein, for each pairwise combination ( i) of illumination and observation directions, a real brightness reflection factor ( R ( φ ri)) representing the intensity of the measuring light reflected from the measuring spot is calculated from the measured reflection factors ( R i ( λ)), wherein a nominal brightness reflection factor ( R ( φ ni)) is calculated from said real brightness reflection factors ( R ( φ ri)) based on the correction model ( K ( φ)) and the real and nominal illumination and observation directions of the color measuring device, and wherein the measured reflection factors ( R i ( λ)) are corrected based on the real brightness reflection factors ( R(φ ri)) and the nominal brightness reflection factors ( R ( φ ni)). correcting the measured reflection factors ( R i ( λ)) based on said correction model ( K ( φ)), taking into account the real and nominal illumination and observation directions of the color measuring device, such that the measured reflection factors ( R i ( λ)) are corrected with respect to measurement errors due to deviations of the real illumination and observation directions of the color measuring device from predetermined nominal illumination and observation directions caused by the measurement geometry of the color measuring device, wherein, for each pairwise combination ( i) of illumination and observation directions, a real brightness reflection factor ( R ( φ ri)) representing the intensity of the measuring light reflected from the measuring spot is calculated from the measured reflection factors ( R i ( λ)), wherein a nominal brightness reflection factor ( R ( φ ni)) is calculated from said real brightness reflection factors ( R ( φ ri)) based on the correction model ( K ( φ)) and the real and nominal illumination and observation directions of the color measuring device, and wherein the measured reflection factors ( R i ( λ)) are corrected based on the real brightness reflection factors ( R(φ ri)) and the nominal brightness reflection factors ( R ( φ ni)).