Hex #5b797a or rgb(91,121,122) in RGB space is the tint of cyan. It has hue angle of 181.94 degrees, value = 48 and saturation = 25. #5b797a can be obtained by mixing 4 colors: 3 drops of magenta, 4 drops of blue, 5 drops of green, 2 drops of white.
Nearest safe hex - #666666. Below you can see the block with #5b797a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b797a to the mixer and play with it.