Hex #9fa400 or rgb(159,164,0) in RGB space is the tint of yellow. It has hue angle of 61.83 degrees, value = 64 and saturation = 100. #9fa400 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of red, 2 drops of green, 1 drop of black.
Nearest safe hex - #999900. Below you can see the block with #9fa400 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #9fa400 to the mixer and play with it.