import random
from PIL import Image

width = 1280
height = 720

img = Image.new("RGB", (width, height))

pixels = img.load()

colors = (
    (0xFF, 0x00, 0x00),
    (0xFF, 0x7F, 0x00),
    (0xFF, 0xFF, 0x00),
    (0x00, 0xFF, 0x00),
    (0x00, 0xFF, 0xFF),
    (0x00, 0x00, 0xFF),
    (0x8B, 0x00, 0xFF),
    (0xFF, 0x00, 0xFF)
)
colors2 = (
    (0xFF,0x00,0x00),
    (0xFF,0x40,0x00),
    (0xFF,0x80,0x00),
    (0xFF,0xBF,0x00),
    (0xFF,0xFF,0x00),
    (0xBF,0xFF,0x00),
    (0x80,0xFF,0x00),
    (0x00,0xFF,0x00),
    (0x00,0xFF,0x80),
    (0x00,0xFF,0xFF),
    (0x00,0x80,0xFF),
    (0x00,0x00,0xFF),
    (0x40,0x00,0xFF),
    (0x80,0x00,0xFF),
    (0xFF,0x00,0xFF),
    (0xFF,0x00,0x80)
)

for y in range(height):
    for x in range(width):
        pixels[x, y] = colors[((x+y)>>4)&7]

img.save("output/rainbow.png")
img.show()

for y in range(height):
    for x in range(width):
        pixels[x, y] = colors2[((x+y)>>4)&15]

img.save("output/rainbow2.png")
img.show()