Hex #554b64 or rgb(85,75,100) in RGB space is the tint of purple. It has hue angle of 264.00 degrees, value = 39 and saturation = 25. #554b64 can be obtained by mixing 4 colors: 2 drops of red, 2 drops of magenta, 5 drops of blue, 3 drops of green.
Nearest safe hex - #663366. Below you can see the block with #554b64 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554b64 to the mixer and play with it.