Hex #661533 or rgb(102,21,51) in RGB space is the tint of scarlet red. It has hue angle of 337.78 degrees, value = 40 and saturation = 79. #661533 can be obtained by mixing 3 colors: 4 drops of red, 3 drops of blue, 3 drops of black.
Nearest safe hex - #660033. Below you can see the block with #661533 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #661533 to the mixer and play with it.