Hex #4d81aa or rgb(77,129,170) in RGB space is the tint of blue. It has hue angle of 206.45 degrees, value = 67 and saturation = 55. #4d81aa can be obtained by mixing 4 colors: 4 drops of blue, 1 drop of cyan, 3 drops of white, 2 drops of black.
Nearest safe hex - #669999. Below you can see the block with #4d81aa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4d81aa to the mixer and play with it.