Аннотация:According to the classical theory of the universality of colour terms by B. Berlin and P. Kay, the basic colour lexicon in various languages of the world must historically have passed through the certain universal evolutionary stages of its development in the appropriate order. The given article aims to contribute to the study of the questions related to the evolution of the colour term systems characterized by the macrocolours, which depict the main parts of the spectrum of blue, green and yellow. The linguistic representation of such systems is featured by the attribution of blue-green, or yellow-green, or blue-yellow-green parts of the spectrum by means of one term. The study shows that in the 20th century a significant part of the languages of Eurasia was characterized by the existence of the blue-green colour system. It can be assumed that the reason for the destruction of such system in the languages of the European part of the continent was the close interaction with the native speakers of the Iranian, Volga and Perm languages in the Seljuk and Bulgar States. The situation was distinctive for the languages geographically located in Siberia, where the Turkic and Tungusic languages with the blue-green systems had an assimilating effect on the speakers of the Samoyed and Ob-Ugric languages, for which in the XVIII century the yellow-green-blue system was recorded and which became blue-green for the majority of the speakers by the 20th century. Our analysis of the changes is based on the actual fixations of the relevant linguistic phenomena in dictionaries and written documents. It shows how the systems with macrocolours evolve, outlining the areas of their distribution and explaining the evolutionary processes by the intensive interlanguage contacts, according to the study of which two possible scenarios for the development of the systems of colour terms are distinguished.