Hex #6d3b3d or rgb(109,59,61) in RGB space is the tint of red. It has hue angle of 357.60 degrees, value = 43 and saturation = 46. #6d3b3d can be obtained by mixing 4 colors: 2 drops of yellow, 4 drops of red, 5 drops of blue, 3 drops of black.
Nearest safe hex - #663333. Below you can see the block with #6d3b3d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6d3b3d to the mixer and play with it.