Hex #5d707c or rgb(93,112,124) in RGB space is the tint of blue. It has hue angle of 203.23 degrees, value = 49 and saturation = 25. #5d707c can be obtained by mixing 4 colors: 2 drops of red, 5 drops of blue, 2 drops of green, 2 drops of white.
Nearest safe hex - #666666. Below you can see the block with #5d707c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5d707c to the mixer and play with it.