Hex #6a919c or rgb(106,145,156) in RGB space is the tint of bluish cian. It has hue angle of 193.20 degrees, value = 61 and saturation = 32. #6a919c can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 2 drops of green, 4 drops of white.
Nearest safe hex - #669999. Below you can see the block with #6a919c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6a919c to the mixer and play with it.