Charcoal color in the CMYK model has the values (80, 60, 50, 40). Thus, there is 80 of cyan, 60 of magenta, 50 of yellow and 40 of black. The closest hex code of the color is #314550 with RGB equivalent values (49, 69, 80). The CMYK system is the backbone of the color printing technology found in both large industrial and small desktop printers. Colors are created using only four inks - cyan (C), magenta (M), yellow (Y) and black (K). Please understand that the reproducibility of charcoal CMYK depends on the quality of the paper, the printer and the inks in the machine.
NOTE: The charcoal (CMYK) hex color code mentioned on this page is just an approximation. It has been calculated from the CMYK values. As you probably know, the CMYK color model is for print media while hex codes and the equivalent RGB values are for screen. The two can seldom be converted correctly. Additionally, charcoal color displayed on the screen through its hex code, may look very different when printed (by the CMYK values).