Hex #78707d or rgb(120,112,125) in RGB space is the tint of purple. It has hue angle of 276.92 degrees, value = 49 and saturation = 10. #78707d can be obtained by mixing 4 colors: 3 drops of red, 5 drops of magenta, 5 drops of cyan, 4 drops of green.
Nearest safe hex - #666666. Below you can see the block with #78707d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78707d to the mixer and play with it.