Hex #11577d or rgb(17,87,125) in RGB space is the tint of bluish cian. It has hue angle of 201.11 degrees, value = 49 and saturation = 86. #11577d can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 4 drops of cyan, 5 drops of black.
Nearest safe hex - #006666. Below you can see the block with #11577d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #11577d to the mixer and play with it.