Hex #174865 or rgb(23,72,101) in RGB space is the tint of bluish cian. It has hue angle of 202.31 degrees, value = 40 and saturation = 77. #174865 can be obtained by mixing 4 colors: 5 drops of blue, 1 drop of green, 1 drop of white, 4 drops of black.
Nearest safe hex - #003366. Below you can see the block with #174865 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #174865 to the mixer and play with it.