code: def test_three_point_colors(self):
      x, y = np.random.randn(2, 3)
      ax = lm.regplot(x=x, y=y, color=(1, 0, 0))
      color = ax.collections[0].get_facecolors()
      npt.assert_almost_equal(color[0, :3], (1, 0, 0))
  
imports: import warnings
  import numpy
  import matplotlib
  import matplotlib.pyplot
  import pandas
  import pytest
  import numpy.testing
  import pandas.testing
  from seaborn import regression
  from seaborn.palettes import color_palette
label_desc: Use image node_id 19 for calling the TestRegressionPlots obj's underlying member method code with example usage: obj.test_three_point_colors() without return types