Hex #9f9d00 or rgb(159,157,0) in RGB space is the tint of yellow. It has hue angle of 59.25 degrees, value = 62 and saturation = 100. #9f9d00 can be obtained by mixing 3 colors: 3 drops of yellow, 2 drops of red, 3 drops of green.
Nearest safe hex - #999900. Below you can see the block with #9f9d00 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #9f9d00 to the mixer and play with it.