Hex #5b3631 or rgb(91,54,49) in RGB space is the tint of red. It has hue angle of 7.14 degrees, value = 36 and saturation = 46. #5b3631 can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of red, 4 drops of blue, 5 drops of black.
Nearest safe hex - #663333. Below you can see the block with #5b3631 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b3631 to the mixer and play with it.