Hex #55a668 or rgb(85,166,104) in RGB space is the tint of bluish green. It has hue angle of 134.07 degrees, value = 65 and saturation = 49. #55a668 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of blue, 3 drops of cyan, 2 drops of black.
Nearest safe hex - #669966. Below you can see the block with #55a668 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a668 to the mixer and play with it.