Hex #40212b or rgb(64,33,43) in RGB space is the tint of scarlet red. It has hue angle of 340.65 degrees, value = 25 and saturation = 48. #40212b can be obtained by mixing 4 colors: 3 drops of red, 3 drops of blue, 1 drop of green, 5 drops of black.
Nearest safe hex - #333333. Below you can see the block with #40212b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40212b to the mixer and play with it.