Hex #409c80 or rgb(64,156,128) in RGB space is the tint of greenish cian. It has hue angle of 161.74 degrees, value = 61 and saturation = 59. #409c80 can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of blue, 4 drops of cyan, 2 drops of black.
Nearest safe hex - #339999. Below you can see the block with #409c80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #409c80 to the mixer and play with it.