Hex #78516e or rgb(120,81,110) in RGB space is the tint of crimson. It has hue angle of 315.38 degrees, value = 47 and saturation = 33. #78516e can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 4 drops of white, 4 drops of black.
Nearest safe hex - #666666. Below you can see the block with #78516e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78516e to the mixer and play with it.