Random Background Color in Pygame

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[@5A6167]

import pygame
import random
pygame.init()
screen_width = 500
screen_height = 500
screen = pygame.display.set_mode([screen_width,screen_height])
pygame.display.set_caption("Game")
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
r = random.randint(0,255)
g = random.randint(0,255)
b = random.randint(0,255)

screen.fill((r,g,b))
pygame.display.flip()
pygame.quit()