Hex #447a55 or rgb(68,122,85) in RGB space is the tint of bluish green. It has hue angle of 138.89 degrees, value = 48 and saturation = 44. #447a55 can be obtained by mixing 4 colors: 4 drops of red, 3 drops of blue, 3 drops of cyan, 5 drops of green.
Nearest safe hex - #336666. Below you can see the block with #447a55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #447a55 to the mixer and play with it.