The Catalogue of Life doesn't list cultivars.
Could your Vriesea be a Neoregelia? The Vriesea genus is undergoing some name changes, with some species reclassified as species of Lutheria, Alcantarea, and other genera. The only similar name listed in the Bromeliad Cultivar Register is Neoregelia 'Marble Rainbow.'
Bromeliad (Neoregelia 'Marble Rainbow') I don't know the source of our entry for Billbergia 'Marbled Rainbow,' but it's not listed in the BCR.