Hex #55b871 or rgb(85,184,113) in RGB space is the tint of bluish green. It has hue angle of 136.97 degrees, value = 72 and saturation = 54. #55b871 can be obtained by mixing 3 colors: 3 drops of yellow, 4 drops of cyan, 2 drops of black.
Nearest safe hex - #66cc66. Below you can see the block with #55b871 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55b871 to the mixer and play with it.