Hex #667533 or rgb(102,117,51) in RGB space is the tint of lime. It has hue angle of 73.64 degrees, value = 46 and saturation = 56. #667533 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of green, 2 drops of white, 5 drops of black.
Nearest safe hex - #666633. Below you can see the block with #667533 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667533 to the mixer and play with it.