Hex #407c4e or rgb(64,124,78) in RGB space is the tint of bluish green. It has hue angle of 134.00 degrees, value = 49 and saturation = 48. #407c4e can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of blue, 3 drops of cyan, 5 drops of black.
Nearest safe hex - #336666. Below you can see the block with #407c4e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #407c4e to the mixer and play with it.