Hex #c66139 or rgb(198,97,57) in RGB space is the tint of orange red. It has hue angle of 17.02 degrees, value = 78 and saturation = 71. #c66139 can be obtained by mixing 3 colors: 5 drops of red, 2 drops of green, 2 drops of white.
Nearest safe hex - #cc6633. Below you can see the block with #c66139 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #c66139 to the mixer and play with it.