title: Scatter plot legend shows only one variable with color -Pandas Seaborn
body: <p>I am trying to plot a <code>scatter</code> plot in <code>pandas</code> with <code>seaborn</code> package. I want both of my variables to show in legend, but I am only getting one. Following is a what I did:</p>
  <pre><code>import pandas as pd
  import numpy as np
  from matplotlib import pyplot as plt
  import seaborn as sns 
  
  df = pd.DataFrame(np.random.randn(100, 6), columns=['a', 'b', 'c', 'd', 'e', 'f'])
  </code></pre>
  <p>I plotted like this,</p>
  <pre><code>plt.scatter(df['a'],df['b'], color = ['red', 'blue'])
  plt.legend(loc = 'best')
  plt.show()
  </code></pre>
  <p>I am getting image like this,
  <a href="https://i.stack.imgur.com/GSpxg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GSpxg.png" alt="enter image description here" /></a></p>
  <p>As you can see, I do not see <code>a</code> column/object with blue color. What mistake am I making here? I searched on this, no luck yet. Any suggestion would be appreciated.</p>