Control the color in stacked area chart


Once you understand how to create a stacked area chart and which baseline option to choose, it’s highly recommended to custom the colors of your chart. This post explains how to customize colors.

You can change the colors in your stacked area chart with the colors parameter of the stackplot() function. Here I propose 2 solutions: the first one is to use a common color palette, the second is to pick up your colors one by one.

# libraries
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
 
# Your x and y axis
x = range(1,6)
y = [ [10,4,6,5,3], [12,2,7,10,1], [8,18,5,7,6] ]
 
# use a known color palette
pal = sns.color_palette("Set1")
plt.stackplot(x,y, labels=['A','B','C'], colors=pal, alpha=0.4 )
plt.legend(loc='upper right')
plt.show()
 
# create your palette
pal = ["#9b59b6", "#e74c3c", "#34495e", "#2ecc71"]
plt.stackplot(x,y, labels=['A','B','C'], colors=pal, alpha=0.4 )
plt.legend(loc='upper right')
plt.show()

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πŸ‘‹ This document is a work by Yan Holtz. Any feedback is highly encouraged. You can fill an issue on Github, drop me a message onTwitter, or send an email pasting yan.holtz.data with gmail.com.

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