Is it possible to use hexadecimal color codes in the tikzposter package?

[Christopher W. Ryan]

Is it possible to use hexadecimal color codes in the tikzposter package?

>From my limited understanding, tikzposter loads xcolor. Basic xcolor
names work with the following:

\documentclass[25pt, a0paper, portrait, margin=0mm, innermargin=15mm,
     blockverticalspace=15mm, colspace=15mm, subcolspace=8mm]{tikzposter}

And I can get a wider selection of named colors with:

\documentclass[25pt, a0paper, portrait, margin=0mm, innermargin=15mm,
     blockverticalspace=15mm, colspace=15mm, subcolspace=8mm,
dvipsnames]{tikzposter}

This, however, does not get me access to hex color names:

\documentclass[25pt, a0paper, portrait, margin=0mm, innermargin=15mm,
     blockverticalspace=15mm, colspace=15mm, subcolspace=8mm,
HTML]{tikzposter}

Thanks.

--Chris Ryan