Hex #406b20 or rgb(64,107,32) in RGB space is the tint of olive. It has hue angle of 94.40 degrees, value = 42 and saturation = 70. #406b20 can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of green, 1 drop of white, 4 drops of black.
Nearest safe hex - #336633. Below you can see the block with #406b20 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #406b20 to the mixer and play with it.