Hex #668a22 or rgb(102,138,34) in RGB space is the tint of lime. It has hue angle of 80.77 degrees, value = 54 and saturation = 75. #668a22 can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of magenta, 5 drops of green, 1 drop of black.
Nearest safe hex - #669933. Below you can see the block with #668a22 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668a22 to the mixer and play with it.