Hex #173e5d or rgb(23,62,93) in RGB space is the tint of blue. It has hue angle of 206.57 degrees, value = 36 and saturation = 75. #173e5d can be obtained by mixing 4 colors: 1 drop of red, 3 drops of blue, 2 drops of cyan, 5 drops of black.
Nearest safe hex - #003366. Below you can see the block with #173e5d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #173e5d to the mixer and play with it.