Hex #40464b or rgb(64,70,75) in RGB space is the tint of blue. It has hue angle of 207.27 degrees, value = 29 and saturation = 15. #40464b can be obtained by mixing 4 colors: 4 drops of magenta, 3 drops of blue, 5 drops of green, 4 drops of black.
Nearest safe hex - #333333. Below you can see the block with #40464b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40464b to the mixer and play with it.