Hex #444f5b or rgb(68,79,91) in RGB space is the tint of blue. It has hue angle of 211.30 degrees, value = 36 and saturation = 25. #444f5b can be obtained by mixing 4 colors: 4 drops of magenta, 4 drops of blue, 5 drops of green, 2 drops of black.
Nearest safe hex - #336666. Below you can see the block with #444f5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #444f5b to the mixer and play with it.