The history of color as a linguistic entity dates back to ancient times. The phenomenon of color plays a dominant role not only in aesthetics, fashion or art, but also in almost every aspect of life. Each color is effective in the formation of different perceptions of the object to which it belongs. The perception of an object in the mind affects language, and accordingly, language affects perception. Language is an indispensable element for human beings, who are social beings, to communicate. One of the elements of language is color, which is used to describe concrete and discrete substances. Among the colors, the color name red is assumed to be one of the first distinguished color names. Since the objects that exist in red in nature are similar in almost every geography, the effect that this color evokes in most languages and the adjective it adds to the object it describes are similar. However, there are also examples where this similarity differs depending on factors such as culture, religion, language, geography, etc. Idioms are one of these elements. Color names are of great importance in idioms, which are seen as a direct reflection of culture in language. In this study, idioms formed with the name of the color red in Arabic and Turkish were examined with the method of contrastive analysis. This method aims to compare languages in terms of sound, form, meaning, etc. between two languages. The findings were obtained from Turkish and Arabic idiom dictionaries. According to the results obtained as a result of the examination of the findings, it is seen that the idioms formed with the name of the color red in Arabic and Turkish mostly contain similar elements