Hex #717f68 or rgb(113,127,104) in RGB space is the tint of olive. It has hue angle of 96.52 degrees, value = 50 and saturation = 18. #717f68 can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 5 drops of green, 4 drops of white.
Nearest safe hex - #666666. Below you can see the block with #717f68 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #717f68 to the mixer and play with it.