Hex #156347 or rgb(21,99,71) in RGB space is the tint of greenish cian. It has hue angle of 158.46 degrees, value = 39 and saturation = 79. #156347 can be obtained by mixing 4 colors: 1 drop of magenta, 4 drops of blue, 5 drops of green, 2 drops of black.
Nearest safe hex - #006633. Below you can see the block with #156347 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #156347 to the mixer and play with it.