Hex #1c184c or rgb(28,24,76) in RGB space is the tint of violet. It has hue angle of 244.62 degrees, value = 30 and saturation = 68. #1c184c can be obtained by mixing 3 colors: 1 drop of magenta, 3 drops of blue, 5 drops of black.
Nearest safe hex - #330033. Below you can see the block with #1c184c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1c184c to the mixer and play with it.