Hex #669f83 or rgb(102,159,131) in RGB space is the tint of teal. It has hue angle of 150.53 degrees, value = 62 and saturation = 36. #669f83 can be obtained by mixing 4 colors: 2 drops of yellow, 4 drops of magenta, 5 drops of cyan, 4 drops of green.
Nearest safe hex - #669999. Below you can see the block with #669f83 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #669f83 to the mixer and play with it.