Hex #55a380 or rgb(85,163,128) in RGB space is the tint of teal. It has hue angle of 153.08 degrees, value = 64 and saturation = 48. #55a380 can be obtained by mixing 4 colors: 3 drops of blue, 4 drops of green, 4 drops of white, 1 drop of black.
Nearest safe hex - #669999. Below you can see the block with #55a380 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a380 to the mixer and play with it.