Hex #400915 or rgb(64,9,21) in RGB space is the tint of scarlet red. It has hue angle of 346.91 degrees, value = 25 and saturation = 86. #400915 can be obtained by mixing 3 colors: 2 drops of red, 1 drop of blue, 5 drops of black.
Nearest safe hex - #330000. Below you can see the block with #400915 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #400915 to the mixer and play with it.