Color #663e33 has an RGB value of (102, 62, 51). That makes it approximately 40% red, 24% green, and 20% blue. On the CYMK color model #663e33 is 0 cyan, 50 yellow, 39 magenta, and 60 black. It is also 13° hue, 33% saturation, and 30% lightness on the HSL color model and 13° hue, 50% saturation, and 40% value on the HSV color model. #663e33 is not a Pantone color, but it is close to Pantone color 7518. #663e33 is not a DIC color, but it is close to DIC 2252s. #663e33 is not a web safe color, but it is close to #663333.