Hex #99a783 or rgb(153,167,131) in RGB space is the tint of olive. It has hue angle of 83.33 degrees, value = 65 and saturation = 22. #99a783 can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of blue, 5 drops of white, 2 drops of black.
Nearest safe hex - #999999. Below you can see the block with #99a783 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99a783 to the mixer and play with it.