Hex #55bb97 or rgb(85,187,151) in RGB space is the tint of greenish cian. It has hue angle of 158.82 degrees, value = 73 and saturation = 55. #55bb97 can be obtained by mixing 4 colors: 2 drops of blue, 1 drop of cyan, 3 drops of green, 3 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #55bb97 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55bb97 to the mixer and play with it.