Why won't my brick change to the correct colour?

I'm currently making a jail cell which has a button outside the door. Once someone is placed inside the cell, you press the button to make a brick above the door turn green/red depending on whether the cell is occupied or not.

This is the script I have so far:

local button = script.Parent
local light = game.Workspace.light


button.ClickDetector.MouseClick:Connect(function(occupied)
    light.PointLight.Color = Color3.new(255,0,0)
    light.Color = Color3.new(196,40,28)
end)


button.ClickDetector.MouseClick:Connect(function(vacant)
    light.PointLight.Color = Color3.new(0,255,0)
    light.Color = Color3.new(75,151,75)
end)

So far the script somewhat works. When I click the button, it changes the pointlight colour to red, but the actual brick colour is changed to 60, 216, 228 - Teal. I don't understand why it is changing it to that colour. If I click the button again, nothing happens, but I would like it to change back to green.