A method of outputting color code for data communication to a display screen, the method includes determining a plurality of sections having a predetermined order of a display screen, mapping the plurality of sections to different binary numbers each having at least one-bit length, and outputting a predetermined color to consecutive sections including at least a first section among the plurality of sections in a direction of the predetermined order or a reverse direction of the predetermined order. The color output to the consecutive sections represents binary numbers in which ‘0’ or ‘1’ is added to a front or end of designated binary numbers in the direction of the predetermined order or the reverse direction of the predetermined order, the designated binary numbers mapped to a last section among the consecutive sections in the direction of the predetermined order or the reverse direction of the predetermined order.