Enable extended color palette (tailwindlabs#5384)

Co-Authored-By: Adam Wathan <4323180+adamwathan@users.noreply.github.com>

Co-authored-by: Jonathan Reinink <jonathan@reinink.ca>
Co-authored-by: Adam Wathan <4323180+adamwathan@users.noreply.github.com>

Author: adamwathan