Hex #606340 or rgb(96,99,64) in RGB space is the tint of yellow. It has hue angle of 65.14 degrees, value = 39 and saturation = 35. #606340 can be obtained by mixing 4 colors: 1 drop of red, 2 drops of magenta, 1 drop of blue, 4 drops of green.
Nearest safe hex - #666633. Below you can see the block with #606340 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #606340 to the mixer and play with it.