Hex #d52839 or rgb(213,40,57) in RGB space is the tint of red. It has hue angle of 354.10 degrees, value = 84 and saturation = 81. #d52839 can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of red, 2 drops of magenta, 1 drop of black.
Nearest safe hex - #cc3333. Below you can see the block with #d52839 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #d52839 to the mixer and play with it.