Hex #559763 or rgb(85,151,99) in RGB space is the tint of bluish green. It has hue angle of 132.73 degrees, value = 59 and saturation = 44. #559763 can be obtained by mixing 4 colors: 1 drop of blue, 4 drops of green, 4 drops of white, 3 drops of black.
Nearest safe hex - #669966. Below you can see the block with #559763 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #559763 to the mixer and play with it.