Hex #993333 or rgb(153,51,51) in RGB space is the tint of red. It has hue angle of 0.00 degrees, value = 60 and saturation = 67. #993333 can be obtained by mixing 3 colors: 2 drops of red, 1 drop of white, 2 drops of black.
Nearest safe hex - #993333. Below you can see the block with #993333 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #993333 to the mixer and play with it.