Hex #559c80 or rgb(85,156,128) in RGB space is the tint of teal. It has hue angle of 156.34 degrees, value = 61 and saturation = 46. #559c80 can be obtained by mixing 4 colors: 3 drops of magenta, 3 drops of cyan, 5 drops of green, 1 drop of white.
Nearest safe hex - #669999. Below you can see the block with #559c80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #559c80 to the mixer and play with it.