Rainbow Spotlight beam match colors???

How can i make this rainbow script for my beam match colors.

This is wat my worskpace looks like : https://gyazo.com/5e3b6898567706f8b023ac40d02027cf https://gyazo.com/b0354402021bdd5808e28acd7941c499

Script:

while true do
    script.Parent.Color = ColorSequence.new(Color3.fromRGB(math.random(0,255),math.random(0,255),math.random(0,255)),Color3.fromRGB(math.random(0,255),math.random(0,255),math.random(0,255))) 
    wait(1)
end