Hex #6d9d8c or rgb(109,157,140) in RGB space is the tint of greenish cian. It has hue angle of 158.75 degrees, value = 62 and saturation = 31. #6d9d8c can be obtained by mixing 4 colors: 2 drops of yellow, 4 drops of magenta, 5 drops of cyan, 3 drops of green.
Nearest safe hex - #669999. Below you can see the block with #6d9d8c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6d9d8c to the mixer and play with it.