Hex #5b6e7a or rgb(91,110,122) in RGB space is the tint of blue. It has hue angle of 203.23 degrees, value = 48 and saturation = 25. #5b6e7a can be obtained by mixing 4 colors: 1 drop of yellow, 4 drops of blue, 4 drops of white, 5 drops of black.
Nearest safe hex - #666666. Below you can see the block with #5b6e7a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b6e7a to the mixer and play with it.