Hex #397b55 or rgb(57,123,85) in RGB space is the tint of teal. It has hue angle of 145.45 degrees, value = 48 and saturation = 54. #397b55 can be obtained by mixing 4 colors: 1 drop of cyan, 2 drops of green, 2 drops of white, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #397b55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #397b55 to the mixer and play with it.