Hex #99aa4d or rgb(153,170,77) in RGB space is the tint of lime. It has hue angle of 70.97 degrees, value = 67 and saturation = 55. #99aa4d can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of cyan, 2 drops of white, 3 drops of black.
Nearest safe hex - #999966. Below you can see the block with #99aa4d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99aa4d to the mixer and play with it.