pygame-font TypeError: invalid color argument错误

我在Pygame显示文字时：

    def draw():    
        screen.fill(green)  
        screen.fill(fontt.render("KO:"+str(sm),False,(100,100,0)))

出现了以下错误：

Traceback (most recent call last):
  File "***.py", line 165, in 
    movet.draw()
  File "***.py", line 85, in draw
    screen.fill(fontt.render("KO:"+str(sm),False,(100,100,0)))
TypeError: invalid color argument

我搞了好几天这BUG，都没搞出来，希望大师能帮我一下