A rule was established for the selection of peel reflectance spectrum characteristic for a given apple variety. This permits an objective pomological description of fruit colour with the help of the L*, H* and C* trichromatic parameters. The proper selection of spectrum for a variety requires that the following conditions be met: uniform concentration of chlorophyll in the peel around the fruit circumference and maximum concentration of anthocyanins in the red blush. Information on the pigment concentration is obtained from absorption bands in ripe fruit peel as reflectance spectrum.