Hex #55a372 or rgb(85,163,114) in RGB space is the tint of bluish green. It has hue angle of 142.31 degrees, value = 64 and saturation = 48. #55a372 can be obtained by mixing 4 colors: 4 drops of yellow, 5 drops of blue, 2 drops of cyan, 1 drop of green.
Nearest safe hex - #669966. Below you can see the block with #55a372 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a372 to the mixer and play with it.