Hex #55ae97 or rgb(85,174,151) in RGB space is the tint of greenish cian. It has hue angle of 164.49 degrees, value = 68 and saturation = 51. #55ae97 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of red, 2 drops of blue, 4 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #55ae97 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55ae97 to the mixer and play with it.