Hex #404847 or rgb(64,72,71) in RGB space is the tint of cyan. It has hue angle of 172.50 degrees, value = 28 and saturation = 11. #404847 can be obtained by mixing 4 colors: 3 drops of magenta, 2 drops of blue, 4 drops of green, 3 drops of black.
Nearest safe hex - #333333. Below you can see the block with #404847 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #404847 to the mixer and play with it.