Hex #60666b or rgb(96,102,107) in RGB space is the tint of blue. It has hue angle of 207.27 degrees, value = 42 and saturation = 10. #60666b can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of magenta, 3 drops of blue, 2 drops of green.
Nearest safe hex - #666666. Below you can see the block with #60666b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #60666b to the mixer and play with it.