Hex #5b7498 or rgb(91,116,152) in RGB space is the tint of blue. It has hue angle of 215.41 degrees, value = 60 and saturation = 40. #5b7498 can be obtained by mixing 3 colors: 5 drops of blue, 5 drops of white, 4 drops of black.
Nearest safe hex - #666699. Below you can see the block with #5b7498 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b7498 to the mixer and play with it.