    def get_color(self, k, d=None):
        """
        Strip leading # off colors if necessary
        """
        color = self.get(k, d)
        if hasattr(color, 'startswith') and color.startswith('#'):
            color = color[1:]
            if len(color) == 3:  # Premailers reduces colors like #00ff00 to #0f0, openpyxl doesn't like that
                color = ''.join(2 * c for c in color)
        return color
Strip leading # off colors if necessary
ptstructure/table/tablepyxl/style.py