Hex #99b633 or rgb(153,182,51) in RGB space is the tint of lime. It has hue angle of 73.28 degrees, value = 71 and saturation = 72. #99b633 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of green, 1 drop of white, 1 drop of black.
Nearest safe hex - #99cc33. Below you can see the block with #99b633 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99b633 to the mixer and play with it.