Hex #66ad8e or rgb(102,173,142) in RGB space is the tint of teal. It has hue angle of 153.80 degrees, value = 68 and saturation = 41. #66ad8e can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of blue, 4 drops of green, 5 drops of white.
Nearest safe hex - #669999. Below you can see the block with #66ad8e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66ad8e to the mixer and play with it.