Hex #809191 or rgb(128,145,145) in RGB space is the tint of cyan. It has hue angle of 180.00 degrees, value = 57 and saturation = 12. #809191 can be obtained by mixing 4 colors: 2 drops of magenta, 2 drops of blue, 3 drops of green, 3 drops of white.
Nearest safe hex - #999999. Below you can see the block with #809191 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #809191 to the mixer and play with it.