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How to generate random colors in Matplotlib?
To make a custom color, we can create a hexadecimal string. From it, we can make different sets of color representation and can pass into the scatter method to get the desired output.
Steps
Take an input from the user for the number of colors, i.e., number_of_colors = 20.
Use Hexadecimal alphabets to get a color.
Create a color from (step 2) by choosing a random character from step 2 data.
Plot scatter points for step 1 input data, with step 3 colors.
To show the figure, use plt.show() method.
Example
import matplotlib.pyplot as plt
import random
number_of_colors = int(input("Please enter number of colors: "))
hexadecimal_alphabets = '0123456789ABCDEF'
color = ["#" + ''.join([random.choice(hexadecimal_alphabets) for j in
range(6)]) for i in range(number_of_colors)]
for i in range(number_of_colors):
plt.scatter(random.randint(0, 10), random.randint(0, 10), c=color[i], s=200)
plt.show()Output
Please enter the number of colors: 20
Updated on: 16-Mar-2021
2K+ Views
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