Hex #66731a or rgb(102,115,26) in RGB space is the tint of lime. It has hue angle of 68.76 degrees, value = 45 and saturation = 77. #66731a can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of green, 1 drop of white, 5 drops of black.
Nearest safe hex - #666633. Below you can see the block with #66731a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66731a to the mixer and play with it.