Hex #55a664 or rgb(85,166,100) in RGB space is the tint of bluish green. It has hue angle of 131.11 degrees, value = 65 and saturation = 49. #55a664 can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of blue, 2 drops of green, 1 drop of white.
Nearest safe hex - #669966. Below you can see the block with #55a664 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a664 to the mixer and play with it.