bright_color_generator.py

import random
import colorsys
import matplotlib.pyplot as plt

def create_image(w, h, color):
    image = np.zeros((w, h, 3), np.uint8)
    # Fill image with red color(set each pixel to red)
    image[:] = color
    return image

# HSL color illustration https://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Hsl-hsv_models.svg/1200px-Hsl-hsv_models.svg.png
h,s,l = random.random(), 0.5 + random.random()/2.0, 0.8 + random.random()/5.0
r,g,b = [int(256*i) for i in colorsys.hls_to_rgb(h,l,s)]
color = (r, g, b)

# example
w = h = 100
img = create_image(w, h, color)
plt.imshow(img)