Hex #6d8c3d or rgb(109,140,61) in RGB space is the tint of olive. It has hue angle of 83.54 degrees, value = 55 and saturation = 56. #6d8c3d can be obtained by mixing 4 colors: 1 drop of red, 1 drop of magenta, 4 drops of green, 1 drop of white.
Nearest safe hex - #669933. Below you can see the block with #6d8c3d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6d8c3d to the mixer and play with it.