Hex #554272 or rgb(85,66,114) in RGB space is the tint of purple. It has hue angle of 263.75 degrees, value = 45 and saturation = 42. #554272 can be obtained by mixing 4 colors: 1 drop of red, 1 drop of magenta, 3 drops of blue, 1 drop of green.
Nearest safe hex - #663366. Below you can see the block with #554272 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554272 to the mixer and play with it.