Hex #156940 or rgb(21,105,64) in RGB space is the tint of teal. It has hue angle of 150.71 degrees, value = 41 and saturation = 80. #156940 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of cyan, 3 drops of green, 5 drops of black.
Nearest safe hex - #006633. Below you can see the block with #156940 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #156940 to the mixer and play with it.