Hex #71657b or rgb(113,101,123) in RGB space is the tint of purple. It has hue angle of 272.73 degrees, value = 48 and saturation = 18. #71657b can be obtained by mixing 4 colors: 1 drop of red, 2 drops of blue, 3 drops of white, 3 drops of black.
Nearest safe hex - #666666. Below you can see the block with #71657b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #71657b to the mixer and play with it.