How to change a ParticleEmitters Color with ColorSequence.new?

I am trying to make a particle emitters color change every 5 seconds to make a cool effect. However, the color of the particles isn't changing.

while true do

Emitter = game.Workspace.Part1.ParticleEmitter.Color -- Part1 is the name of the part that is the parent to the particle emitter

Emitter = ColorSequence.new(Color3.new(0,0,0))

wait(5)

Emitter = ColorSequence.new(Color3.new(255,0,0))

wait(5)

Emitter = ColorSequence.new(Color3.new(255,0,255))

wait(5)

end

Why isn't the colour changing?