Hex #66714d or rgb(102,113,77) in RGB space is the tint of lime. It has hue angle of 78.33 degrees, value = 44 and saturation = 32. #66714d can be obtained by mixing 4 colors: 1 drop of red, 2 drops of green, 3 drops of white, 4 drops of black.
Nearest safe hex - #666666. Below you can see the block with #66714d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66714d to the mixer and play with it.