Hex #378c68 or rgb(55,140,104) in RGB space is the tint of teal. It has hue angle of 154.59 degrees, value = 55 and saturation = 61. #378c68 can be obtained by mixing 4 colors: 4 drops of blue, 5 drops of green, 3 drops of white, 2 drops of black.
Nearest safe hex - #339966. Below you can see the block with #378c68 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #378c68 to the mixer and play with it.