The colors seen on a computer screen consist of combinations of the primary colors red (R), green (G), and blue (B). The intensity of each of the three ranges from 0 to 255. This allows 2553=16,581,375 distinct colors (at least theoretically), where a particular color's designation may require up to 9 digits. For example, the (R, G, B) designation for black is (0, 0, 0), while white is (255, 255, 255), and gray is (128, 128, 128). But the colors are coded in HTML (HyperText Markup Language) in hexadecimal, so each primary color intensity then requires no more than two digits 255=FFsixteen. White is coded , and black is 000000. Give a similar HTML code for the color gray.