A Dark Navy Blue to Blue-Black ink. If you find some Blue-Black inks to be too light, or have a Grey under-tone, you should definitely consider this ink. Nicely saturated ink with low to smooth transitioning Shading (definitely not excessive or Binary Shading). nibs will lay down a nice, dark, line, which makes it easy to read back. No bleed through, wooliness, or Feathering. Has Red Sheen, but it is not over-powering. Ink is very Work Appropriate. Ages nicely, the ink does not lighten over time.