Scott MacKay @AirbrushDownandDirtyTricks shows how to mix an anodized black candy by mixing candy2o Black with Wicked Quicksilver billet-chrome silver.
4664 candy2o Black, https://candy2o.com/
W357 Quicksilver, https://wickedairbrushcolors.com/pearl-and-metallic
4040 Bleed Checker, https://createxcolors.com/reducers-additives/speciality-products