Hex #408a55 or rgb(64,138,85) in RGB space is the tint of bluish green. It has hue angle of 137.03 degrees, value = 54 and saturation = 54. #408a55 can be obtained by mixing 3 colors: 3 drops of yellow, 4 drops of cyan, 5 drops of black.
Nearest safe hex - #339966. Below you can see the block with #408a55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #408a55 to the mixer and play with it.