A display apparatus includes a communication circuitry configured to communicate with an external device; a display; and a controller configured to perform pairing with the external device, to control the communication circuitry to receive an image around the display apparatus captured by the external device from the paired external device, to apply a plurality of colors selected based on color data of the plurality of colors extracted from the received image, to a plurality of predetermined regions, to generate an image based on the plurality of regions to which the selected plurality of colors are applied, and to control the display to display the generated image.