Hex #661556 or rgb(102,21,86) in RGB space is the tint of crimson. It has hue angle of 311.85 degrees, value = 40 and saturation = 79. #661556 can be obtained by mixing 4 colors: 2 drops of red, 2 drops of magenta, 3 drops of blue, 3 drops of black.
Nearest safe hex - #660066. Below you can see the block with #661556 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #661556 to the mixer and play with it.