Hex #158b55 or rgb(21,139,85) in RGB space is the tint of teal. It has hue angle of 152.54 degrees, value = 55 and saturation = 85. #158b55 can be obtained by mixing 4 colors: 1 drop of red, 4 drops of cyan, 4 drops of green, 3 drops of black.
Nearest safe hex - #009966. Below you can see the block with #158b55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #158b55 to the mixer and play with it.