Hex #a4a837 or rgb(164,168,55) in RGB space is the tint of yellow. It has hue angle of 62.12 degrees, value = 66 and saturation = 67. #a4a837 can be obtained by mixing 4 colors: 5 drops of yellow, 3 drops of magenta, 5 drops of green, 1 drop of white.
Nearest safe hex - #999933. Below you can see the block with #a4a837 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #a4a837 to the mixer and play with it.