Hex #99cc55 or rgb(153,204,85) in RGB space is the tint of olive. It has hue angle of 85.71 degrees, value = 80 and saturation = 58. #99cc55 can be obtained by mixing 3 colors: 3 drops of yellow, 1 drop of blue, 1 drop of cyan.
Nearest safe hex - #99cc66. Below you can see the block with #99cc55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99cc55 to the mixer and play with it.