Hex #621d2e or rgb(98,29,46) in RGB space is the tint of scarlet red. It has hue angle of 345.22 degrees, value = 38 and saturation = 70. #621d2e can be obtained by mixing 4 colors: 5 drops of red, 2 drops of blue, 1 drop of cyan, 5 drops of black.
Nearest safe hex - #663333. Below you can see the block with #621d2e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #621d2e to the mixer and play with it.