Hex #405a30 or rgb(64,90,48) in RGB space is the tint of olive. It has hue angle of 97.14 degrees, value = 35 and saturation = 47. #405a30 can be obtained by mixing 4 colors: 4 drops of red, 3 drops of cyan, 4 drops of green, 5 drops of black.
Nearest safe hex - #336633. Below you can see the block with #405a30 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405a30 to the mixer and play with it.