Hex #99b966 or rgb(153,185,102) in RGB space is the tint of olive. It has hue angle of 83.13 degrees, value = 73 and saturation = 45. #99b966 can be obtained by mixing 4 colors: 4 drops of yellow, 3 drops of blue, 1 drop of green, 2 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #99b966 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99b966 to the mixer and play with it.