Hex #55a663 or rgb(85,166,99) in RGB space is the tint of bluish green. It has hue angle of 130.37 degrees, value = 65 and saturation = 49. #55a663 can be obtained by mixing 4 colors: 1 drop of blue, 5 drops of green, 4 drops of white, 2 drops of black.
Nearest safe hex - #669966. Below you can see the block with #55a663 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a663 to the mixer and play with it.