Hex #662739 or rgb(102,39,57) in RGB space is the tint of scarlet red. It has hue angle of 342.86 degrees, value = 40 and saturation = 62. #662739 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of red, 5 drops of blue, 4 drops of black.
Nearest safe hex - #663333. Below you can see the block with #662739 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #662739 to the mixer and play with it.