Hello!
If you have the program Paint, then you can choose a color there.
There is for every color 0 - 255.
Here you can see the color purple:
Red: 135
Green: 16
Blue: 132
So now you have to divide it (255).
The code is now
Edit: or just do for purple:Code:(135/255, 16/255, 132/255)
Code:(1, 0, 1)