Hex #668e6c or rgb(102,142,108) in RGB space is the tint of bluish green. It has hue angle of 129.00 degrees, value = 56 and saturation = 28. #668e6c can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of magenta, 5 drops of cyan, 4 drops of black.
Nearest safe hex - #669966. Below you can see the block with #668e6c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668e6c to the mixer and play with it.