Hex #717768 or rgb(113,119,104) in RGB space is the tint of olive. It has hue angle of 84.00 degrees, value = 47 and saturation = 13. #717768 can be obtained by mixing 4 colors: 3 drops of red, 1 drop of magenta, 3 drops of cyan, 2 drops of green.
Nearest safe hex - #666666. Below you can see the block with #717768 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #717768 to the mixer and play with it.