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This reminds me of the blackest acrylic paint from Stuart Semple.

Stuart Semple also has a 'white 2.0' that looks like neon white compared to regular white.

If you want an idea of how this might feel on a room scale, here are Action Lab's whitest & blackest rooms:

And the blackest (non-acrylic) paint is Vantablack, the carbon-nanotube-based paint that is infamously only available to Anish Kapoor.