imagedraw.draw.line颜色显示错误

Question

当我在PIL中画一条线时，它显示为错误的颜色。例如，如果我说红色显示为蓝色，则蓝色显示为红色。有什么原因吗？下面的代码

color = 'red'
draw = ImageDraw.Draw(image_pil)
for c in coords:
    (left, right, top, bottom) = (c[1]-1, c[3]+1, c[0]-1, c[2]+1)
    draw.line([(left, top),(left, bottom), (right, bottom),
               (right, top), (left, top)], width=thickness, fill=color)

enter image description here ttps：//i.stack.imgur.com/X3xlC.jpg