Hex #668a77 or rgb(102,138,119) in RGB space is the tint of teal. It has hue angle of 148.33 degrees, value = 54 and saturation = 26. #668a77 can be obtained by mixing 4 colors: 1 drop of magenta, 1 drop of blue, 2 drops of green, 1 drop of white.
Nearest safe hex - #669966. Below you can see the block with #668a77 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668a77 to the mixer and play with it.