Hex #666244 or rgb(102,98,68) in RGB space is the tint of yellow. It has hue angle of 52.94 degrees, value = 40 and saturation = 33. #666244 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of magenta, 1 drop of blue, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #666244 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666244 to the mixer and play with it.