Hex #402d2b or rgb(64,45,43) in RGB space is the tint of red. It has hue angle of 5.71 degrees, value = 25 and saturation = 33. #402d2b can be obtained by mixing 3 colors: 1 drop of magenta, 1 drop of green, 2 drops of black.
Nearest safe hex - #333333. Below you can see the block with #402d2b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #402d2b to the mixer and play with it.