HOw define the colors for two columns?

[Jack_Sparrow]

Hi there,
I am trying to define some colors for two dimensions.


this is my code, where I defined the colors.

    #what is the vote avarage for Star Wars and Star Treck?
    avg_starwars = df_star_wars ['vote_average'].hist(figsize = (8,8)).color='black'
    avg_startrek = df_star_trek ['vote_average'].hist(figsize = (8,8)).color = 'red'

But the code doesn't work.... Well the bar chart is appears, but the colors are not defined