Hex #377b5b or rgb(55,123,91) in RGB space is the tint of teal. It has hue angle of 151.76 degrees, value = 48 and saturation = 55. #377b5b can be obtained by mixing 4 colors: 3 drops of red, 5 drops of cyan, 3 drops of green, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #377b5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #377b5b to the mixer and play with it.