Hex #df4635 or rgb(223,70,53) in RGB space is the tint of red. It has hue angle of 6.00 degrees, value = 87 and saturation = 76. #df4635 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of red, 1 drop of blue, 1 drop of white.
Nearest safe hex - #cc3333. Below you can see the block with #df4635 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #df4635 to the mixer and play with it.