Hex #666622 or rgb(102,102,34) in RGB space is the tint of yellow. It has hue angle of 60.00 degrees, value = 40 and saturation = 67. #666622 can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of magenta, 3 drops of green, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #666622 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666622 to the mixer and play with it.