Python Turtle draw : this should be draw circle by 3 random colors, but this code draw circle without color.

import turtle

window=turtle.Screen()
tess= turtle. Turtle()

import random

def getColor():
    
    color=random.randint(1,3)
    if color==1:
        color="red"
    elif color==2:
        color=="yellow"
    elif color==3:
        color=="blue"
    return color
print (random.randint(1,3))

def drawFace (x,y):

    tess.penup()
    tess.goto(x+5,y+10)
    tess.circle(10)
    tess.goto(x+15,y+10)
    tess.circle(10)
    tess.pendown()


   