An electronic device according to various embodiments includes a display, a processor, and a memory. Based on a determination that a theme of the electronic device is applied, the memory may store instructions that, when executed, control the processor to receive a content display request. Based on a determination that the content includes a first object stored with an individual custom color value, convert a color value of the individual custom color to a spatial value by comparing spatial distances between each color included in a standard color chart stored in the memory on the basis of the converted spatial value, standardize by a color value positioned at the smallest distance, and retrieve the first object of the individual custom color in the standardized color value to display the first object of the individual custom color on the display.