Hex #5b7374 or rgb(91,115,116) in RGB space is the tint of cyan. It has hue angle of 182.40 degrees, value = 45 and saturation = 22. #5b7374 can be obtained by mixing 4 colors: 5 drops of magenta, 3 drops of cyan, 5 drops of green, 1 drop of black.
Nearest safe hex - #666666. Below you can see the block with #5b7374 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b7374 to the mixer and play with it.