Hex #55b177 or rgb(85,177,119) in RGB space is the tint of bluish green. It has hue angle of 142.17 degrees, value = 69 and saturation = 52. #55b177 can be obtained by mixing 4 colors: 2 drops of cyan, 5 drops of green, 5 drops of white, 3 drops of black.
Nearest safe hex - #669966. Below you can see the block with #55b177 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55b177 to the mixer and play with it.