Hex #409a80 or rgb(64,154,128) in RGB space is the tint of greenish cian. It has hue angle of 162.67 degrees, value = 60 and saturation = 58. #409a80 can be obtained by mixing 3 colors: 3 drops of magenta, 4 drops of cyan, 5 drops of green.
Nearest safe hex - #339999. Below you can see the block with #409a80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #409a80 to the mixer and play with it.