Hex #999c33 or rgb(153,156,51) in RGB space is the tint of yellow. It has hue angle of 61.71 degrees, value = 61 and saturation = 67. #999c33 can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of magenta, 1 drop of blue, 3 drops of green.
Nearest safe hex - #999933. Below you can see the block with #999c33 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #999c33 to the mixer and play with it.