import turtle

t = turtle.Turtle()

t.pencolor('#646464')
t.fillcolor('#a9a9a9')
t.begin_fill()
for _ in range(4):
    t.forward(75)
    t.left(90)
t.end_fill()
for c in ['#4584b6', '#ffde57', '#4584b6', '#ffde57']:
    t.fillcolor(c)
    t.begin_fill()
    t.forward(75)
    t.left(135)
    t.forward(30)
    t.end_fill()
    t.backward(30)
    t.right(45)
t.hideturtle()