Hex #172a4e or rgb(23,42,78) in RGB space is the tint of blue violet. It has hue angle of 219.27 degrees, value = 31 and saturation = 71. #172a4e can be obtained by mixing 4 colors: 1 drop of magenta, 4 drops of blue, 1 drop of green, 5 drops of black.
Nearest safe hex - #003366. Below you can see the block with #172a4e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #172a4e to the mixer and play with it.