Hex #6a642b or rgb(106,100,43) in RGB space is the tint of yellow. It has hue angle of 54.29 degrees, value = 42 and saturation = 59. #6a642b can be obtained by mixing 4 colors: 5 drops of red, 2 drops of cyan, 4 drops of green, 1 drop of black.
Nearest safe hex - #666633. Below you can see the block with #6a642b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6a642b to the mixer and play with it.