Hex #554498 or rgb(85,68,152) in RGB space is the tint of purple violet. It has hue angle of 252.14 degrees, value = 60 and saturation = 55. #554498 can be obtained by mixing 4 colors: 3 drops of magenta, 2 drops of blue, 2 drops of cyan, 2 drops of black.
Nearest safe hex - #663399. Below you can see the block with #554498 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554498 to the mixer and play with it.