Hex #408d79 or rgb(64,141,121) in RGB space is the tint of greenish cian. It has hue angle of 164.42 degrees, value = 55 and saturation = 55. #408d79 can be obtained by mixing 4 colors: 3 drops of magenta, 1 drop of blue, 3 drops of cyan, 5 drops of green.
Nearest safe hex - #339966. Below you can see the block with #408d79 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #408d79 to the mixer and play with it.