Hex #809b9f or rgb(128,155,159) in RGB space is the tint of bluish cian. It has hue angle of 187.74 degrees, value = 62 and saturation = 19. #809b9f can be obtained by mixing 4 colors: 1 drop of red, 2 drops of cyan, 3 drops of white, 2 drops of black.
Nearest safe hex - #999999. Below you can see the block with #809b9f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #809b9f to the mixer and play with it.