Generate random colors (RGB)

A neat way to generate RGB triplets within the 256 (aka 8-byte) range is

color = list(np.random.choice(range(256), size=3))

color is now a list of size 3 with values in the range 0-255. You can save it in a list to record if the color has been generated before or no.

You could also use Hex Color Code,

Name    Hex Color Code  RGB Color CodeRed     #FF0000         rgb(255, 0, 0)Maroon  #800000         rgb(128, 0, 0)Yellow  #FFFF00         rgb(255, 255, 0)Olive   #808000         rgb(128, 128, 0)

For example

import matplotlib.pyplot as pltimport randomnumber_of_colors = 8color = ["#"+''.join([random.choice('0123456789ABCDEF') for j in range(6)])             for i in range(number_of_colors)]print(color)

['#C7980A', '#F4651F', '#82D8A7', '#CC3A05', '#575E76', '#156943', '#0BD055', '#ACD338']

Lets try plotting them in a scatter plot

for i in range(number_of_colors):    plt.scatter(random.randint(0, 10), random.randint(0,10), c=color[i], s=200)plt.show()

Here:

def random_color():    rgbl=[255,0,0]    random.shuffle(rgbl)    return tuple(rgbl)

The result is either red, green or blue. The method is not applicable to other sets of colors though, where you'd have to build a list of all the colors you want to choose from and then use random.choice to pick one at random.