In artworks, the language of color is a crucial means by which emotions are conveyed through visual expression. By employing the contrast and harmony of colors, viewers are offered with rich sensory stimulation, and they are guided to perceive the inner artistic spirit of the creator. In this article, the color language in Hu Richa's oil paintings is analyzed, and the nomadic life of ethnic minorities and grassland culture, as represented in his works, are explored, thereby allowing for an understanding of the unique characteristics of his artistic style. Through the analysis of the Mongolian style of oil painting language, more art enthusiasts can be led to an understanding of this distinctive art form. The unique grassland environment has shaped Mongolian painters with profound cultural heritage, distinct national character, and unique aesthetic features.