Tried making a color-changing script for a textlabel's backgroundcolor3, didnt work?

This code was supposed to change the color of a TextLabel's BackgroundColor3 every 0.1 seconds. Whats the problem?

Script:

while true do 
    script.Parent.BackgroundColor3 = Color3.new(math.random(1, 255), math.random(1, 255), math.random(1, 255))
    wait(0.1)
end