Turtle - Multicolor Pattern
Using set of colors you can deal with multi-color pattern
from turtle import *
colors = ["red","cyan","green","yellow", "white", "orange"]
bgcolor("black") #set the background color to black
speed(0)
for x in range(200):
pencolor(colors[x%6])
width(x/100+1)
forward(x)
left(59)
hideturtle()
done()
Outcome