Hex #448b55 or rgb(68,139,85) in RGB space is the tint of bluish green. It has hue angle of 134.37 degrees, value = 55 and saturation = 51. #448b55 can be obtained by mixing 4 colors: 4 drops of red, 5 drops of cyan, 5 drops of green, 1 drop of black.
Nearest safe hex - #339966. Below you can see the block with #448b55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #448b55 to the mixer and play with it.