Hex #666a5b or rgb(102,106,91) in RGB space is the tint of lime. It has hue angle of 76.00 degrees, value = 42 and saturation = 14. #666a5b can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 4 drops of green, 2 drops of white.
Nearest safe hex - #666666. Below you can see the block with #666a5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666a5b to the mixer and play with it.