Hex #663e55 or rgb(102,62,85) in RGB space is the tint of scarlet. It has hue angle of 325.50 degrees, value = 40 and saturation = 39. #663e55 can be obtained by mixing 4 colors: 2 drops of red, 1 drop of blue, 1 drop of cyan, 1 drop of black.
Nearest safe hex - #663366. Below you can see the block with #663e55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #663e55 to the mixer and play with it.