Hex #99ba66 or rgb(153,186,102) in RGB space is the tint of olive. It has hue angle of 83.57 degrees, value = 73 and saturation = 45. #99ba66 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of green, 2 drops of white, 1 drop of black.
Nearest safe hex - #99cc66. Below you can see the block with #99ba66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99ba66 to the mixer and play with it.