Hex #7180a1 or rgb(113,128,161) in RGB space is the tint of blue violet. It has hue angle of 221.25 degrees, value = 63 and saturation = 30. #7180a1 can be obtained by mixing 4 colors: 5 drops of red, 5 drops of blue, 5 drops of cyan, 3 drops of white.
Nearest safe hex - #669999. Below you can see the block with #7180a1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #7180a1 to the mixer and play with it.