Hex #6a8587 or rgb(106,133,135) in RGB space is the tint of cyan. It has hue angle of 184.14 degrees, value = 53 and saturation = 21. #6a8587 can be obtained by mixing 4 colors: 2 drops of blue, 1 drop of green, 5 drops of white, 4 drops of black.
Nearest safe hex - #669999. Below you can see the block with #6a8587 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6a8587 to the mixer and play with it.