Hex #5b665b or rgb(91,102,91) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 40 and saturation = 11. #5b665b can be obtained by mixing 4 colors: 1 drop of yellow, 4 drops of red, 5 drops of cyan, 4 drops of black.
Nearest safe hex - #666666. Below you can see the block with #5b665b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b665b to the mixer and play with it.