Simple BackgroundColor3 Problem?

Hi. I'm extremely new to GUI's and decently new to scripting as well. So I'm currently training on being better at making GUI's. Anyway, here's my problem:

--EXAMPLE:
while true and wait(1) do
frame.BackgroundColor3=frame.BackgroundColor3*BackgroundColor3.new(5,0,0)
end

I thought this would add 5 to Red every 1 second, but BackgroundColor3 is an unknown value. If I put "frame.BackgroundColor3.new" instead, it says "new" is not a valid member. I have searched for a while and found no answers or example scripts.

If you could help me with the obvious solution it would be appreciated! Thanks anyway.