Abstract: Colour terms are a significant group of lexical units of any language. The article is devoted to the identification and the description of lexical units that explicitly express colour or include implicitly transmitted semes of colour in the novel by the German writer L. Feuchtwanger «The ugly duchess». The author believes that colour terms, accumulating national-cultural stereotypes and ideological meanings of the linguistic community, reproduce fragments of reality and the artistic concept of the world in the text. Using various connotations of colour meanings, L. Feuchtwanger solves two tasks in the novel: colour-description creates a unique poetics of the work, and color-characteristic reveals its main idea. The linguistic representation of colour terms in this novel allows us to understand the writer's idiostyle and the cultural meanings of his work, the peculiarities of the colour perception in the German linguoculture. Since the colour-description in the analyzed novel has not been researched yet, this determines the novelty of this work. The results of the research allow us to assert that the dominant coloratives that define the writer’s idiostyle are shades of blue, gray, white, black, red and brown, i.e. the basic palette of colours. It is worth noting that there are relative more lexemes in the novel that express colour explicitly. The significance of this research is determined by the fact that it contributes to further development of stylistics, linguoculturology and intercultural communication, and can be used in teaching German in higher educational institutions.