Ink?

It depends on the bag. The shade varies quite a bit among ink bags. Some are more purple, some are more dark blue, and many are chameleon-like and appear different shades depending on the lighting it is in...
 
i had seen a ink twiggy which was with thin papery leather with purple hues so i did not purchase, but few days back i got the ink box with thicker leather and it has more dark blue ,black and greyish hues with very slight purple.