Hex #666677 or rgb(102,102,119) in RGB space is the tint of violet. It has hue angle of 240.00 degrees, value = 47 and saturation = 14. #666677 can be obtained by mixing 4 colors: 4 drops of magenta, 2 drops of cyan, 3 drops of green, 1 drop of black.
Nearest safe hex - #666666. Below you can see the block with #666677 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666677 to the mixer and play with it.