Neutral Opaque Gray. Eternal Ink presents an essential addition to every artist's colour palette: a set of four Neutral Opaque Gray inks! For the black and grey artist looking to create a soft opaque gradation, these four inks are evenly spaced at 20%, 40%, 60% and 80% of black on the value scale. Colour artists will love the neutral greys to tone down any colour without changing the tone. The addition of this set allows an artist to expand their colour palette with a wider range of tones and shades. Get it at In Tattoo Veritas.