No module named 'colour'

As I run the command python extract_scene.py example_scenes.py SquareToCircle -pl., the error message said

Traceback (most recent call last):
  File "extract_scene.py", line 15, in <module>
    from scene.scene import Scene
  File "/manim/scene/scene.py", line 15, in <module>
    from animation.animation import Animation
  File "/manim/animation/animation.py", line 5, in <module>
    from mobject.mobject import Mobject
  File "/manim/mobject/mobject.py", line 9, in <module>
    from colour import Color
ModuleNotFoundError: No module named 'colour'

But when I check with pip install color, the terminal says that request already satisfied.