Hex #621b69 or rgb(98,27,105) in RGB space is the tint of magenta. It has hue angle of 294.62 degrees, value = 41 and saturation = 74. #621b69 can be obtained by mixing 4 colors: 2 drops of red, 3 drops of magenta, 5 drops of blue, 3 drops of black.
Nearest safe hex - #663366. Below you can see the block with #621b69 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #621b69 to the mixer and play with it.