code: def test_empty_color_raises(self, color):
      with pytest.raises(ValueError, match="Invalid color argument"):
          get_standard_colors(color=color, num_colors=1)
  
file_path: pandas/pandas/tests/plotting/test_style.py
imports: import pytest
  from pandas import Series
  from pandas.plotting._matplotlib.style import get_standard_colors
label_desc: Use image node_id 8 for calling the TestGetStandardColors obj's underlying member method code with example usage: obj.test_empty_color_raises(color) without return types