Hex #555ca1 or rgb(85,92,161) in RGB space is the tint of violet. It has hue angle of 234.47 degrees, value = 63 and saturation = 47. #555ca1 can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of magenta, 5 drops of blue, 1 drop of cyan.
Nearest safe hex - #666699. Below you can see the block with #555ca1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555ca1 to the mixer and play with it.