Truecolor Truecolor graphics or graphics of million of colours use a method of picture information storage on the memory of a computer where each pixel is represented for 3 or more bytes. The bytes are divided in values for each RGB colour component (red, green and blue) of the final colour. Each one of the RGB components have 8 bits associated with it, that results in 256 values of colours. This allows 16,777,216 possible colours for each pixel. The reason for which is called truecolor is because it's approximately the numbers of colours that the human eye can detect.