Hex #405f1d or rgb(64,95,29) in RGB space is the tint of olive. It has hue angle of 88.18 degrees, value = 37 and saturation = 69. #405f1d can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of magenta, 5 drops of green, 4 drops of black.
Nearest safe hex - #336633. Below you can see the block with #405f1d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405f1d to the mixer and play with it.