Hex #3b567d or rgb(59,86,125) in RGB space is the tint of blue. It has hue angle of 215.45 degrees, value = 49 and saturation = 53. #3b567d can be obtained by mixing 3 colors: 5 drops of blue, 3 drops of white, 5 drops of black.
Nearest safe hex - #336666. Below you can see the block with #3b567d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #3b567d to the mixer and play with it.