Hex #403840 or rgb(64,56,64) in RGB space is the tint of magenta. It has hue angle of 300.00 degrees, value = 25 and saturation = 13. #403840 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 3 drops of blue, 3 drops of black.
Nearest safe hex - #333333. Below you can see the block with #403840 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #403840 to the mixer and play with it.