Hex #00684e or rgb(0,104,78) in RGB space is the tint of greenish cian. It has hue angle of 165.00 degrees, value = 41 and saturation = 100. #00684e can be obtained by mixing 4 colors: 4 drops of blue, 1 drop of cyan, 4 drops of green, 3 drops of black.
Nearest safe hex - #006666. Below you can see the block with #00684e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #00684e to the mixer and play with it.