Hex #66b183 or rgb(102,177,131) in RGB space is the tint of teal. It has hue angle of 143.20 degrees, value = 69 and saturation = 42. #66b183 can be obtained by mixing 4 colors: 5 drops of yellow, 1 drop of red, 4 drops of blue, 5 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #66b183 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66b183 to the mixer and play with it.