Hex #155d39 or rgb(21,93,57) in RGB space is the tint of teal. It has hue angle of 150.00 degrees, value = 36 and saturation = 77. #155d39 can be obtained by mixing 4 colors: 1 drop of magenta, 3 drops of blue, 5 drops of green, 3 drops of black.
Nearest safe hex - #006633. Below you can see the block with #155d39 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #155d39 to the mixer and play with it.