Hex #9f9620 or rgb(159,150,32) in RGB space is the tint of yellow. It has hue angle of 55.75 degrees, value = 62 and saturation = 80. #9f9620 can be obtained by mixing 3 colors: 4 drops of yellow, 1 drop of white, 3 drops of black.
Nearest safe hex - #999933. Below you can see the block with #9f9620 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #9f9620 to the mixer and play with it.