Hex #669744 or rgb(102,151,68) in RGB space is the tint of olive. It has hue angle of 95.42 degrees, value = 59 and saturation = 55. #669744 can be obtained by mixing 4 colors: 5 drops of yellow, 1 drop of magenta, 5 drops of blue, 4 drops of green.
Nearest safe hex - #669933. Below you can see the block with #669744 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #669744 to the mixer and play with it.