Hex #6aa995 or rgb(106,169,149) in RGB space is the tint of greenish cian. It has hue angle of 160.95 degrees, value = 66 and saturation = 37. #6aa995 can be obtained by mixing 4 colors: 3 drops of blue, 3 drops of green, 5 drops of white, 1 drop of black.
Nearest safe hex - #669999. Below you can see the block with #6aa995 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6aa995 to the mixer and play with it.