Hex #99ab66 or rgb(153,171,102) in RGB space is the tint of lime. It has hue angle of 75.65 degrees, value = 67 and saturation = 40. #99ab66 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of cyan, 3 drops of white, 3 drops of black.
Nearest safe hex - #999966. Below you can see the block with #99ab66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99ab66 to the mixer and play with it.