Hex #623827 or rgb(98,56,39) in RGB space is the tint of orange red. It has hue angle of 17.29 degrees, value = 38 and saturation = 60. #623827 can be obtained by mixing 4 colors: 2 drops of red, 3 drops of magenta, 4 drops of green, 4 drops of black.
Nearest safe hex - #663333. Below you can see the block with #623827 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #623827 to the mixer and play with it.