Hex #445d77 or rgb(68,93,119) in RGB space is the tint of blue. It has hue angle of 210.59 degrees, value = 47 and saturation = 43. #445d77 can be obtained by mixing 4 colors: 4 drops of red, 3 drops of blue, 5 drops of cyan, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #445d77 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #445d77 to the mixer and play with it.