Hex #55d679 or rgb(85,214,121) in RGB space is the tint of bluish green. It has hue angle of 136.74 degrees, value = 84 and saturation = 60. #55d679 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of blue, 5 drops of cyan, 2 drops of green.
Nearest safe hex - #66cc66. Below you can see the block with #55d679 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55d679 to the mixer and play with it.