Hex #4d6677 or rgb(77,102,119) in RGB space is the tint of blue. It has hue angle of 204.29 degrees, value = 47 and saturation = 35. #4d6677 can be obtained by mixing 4 colors: 3 drops of red, 1 drop of blue, 4 drops of cyan, 2 drops of black.
Nearest safe hex - #666666. Below you can see the block with #4d6677 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4d6677 to the mixer and play with it.