Hex #668622 or rgb(102,134,34) in RGB space is the tint of lime. It has hue angle of 79.20 degrees, value = 53 and saturation = 75. #668622 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 1 drop of blue, 2 drops of green.
Nearest safe hex - #669933. Below you can see the block with #668622 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668622 to the mixer and play with it.