Hex #55ac64 or rgb(85,172,100) in RGB space is the tint of bluish green. It has hue angle of 130.34 degrees, value = 67 and saturation = 51. #55ac64 can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of blue, 1 drop of cyan, 1 drop of green.
Nearest safe hex - #669966. Below you can see the block with #55ac64 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55ac64 to the mixer and play with it.