Hex #55829f or rgb(85,130,159) in RGB space is the tint of blue. It has hue angle of 203.51 degrees, value = 62 and saturation = 47. #55829f can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of cyan, 3 drops of white, 5 drops of black.
Nearest safe hex - #669999. Below you can see the block with #55829f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55829f to the mixer and play with it.