code: def test_bad_palette_colors(self):
      pal = ["red", "blue", "iamnotacolor"]
      with pytest.raises(ValueError):
          palettes.color_palette(pal)
  
imports: import colorsys
  import numpy
  import matplotlib
  import pytest
  import numpy.testing
  from seaborn import palettes, utils, rcmod
  from seaborn.external import husl
  from seaborn._compat import get_colormap
  from seaborn.colors import xkcd_rgb, crayons
label_desc: Use image node_id 12 for calling the TestColorPalettes obj's underlying member method code with example usage: obj.test_bad_palette_colors() without return types