This is what I have tried so far there is probably an obvious mistake here somewhere lol.
while true do
script.Parent.Brightness = 1
script.Parent.TintColor = Color3.new(170, 85, 255)
wait(3)
script.Parent.Brightness = 1
script.Parent.TintColor = Color3.new(85, 85, 255)
wait(3)
script.Parent.Brightness = 1
script.Parent.TintColor = Color3.new(255, 170, 255)
wait(3)
end

2 comments
Is this under lighting or a ColorCorrectionEffect/
Yes