Why does my part not teleport if the part is navy blue? No errors

local TelePos = '-31, 34.5, -103.5'
local Part = game.Workspace.Part12

if Part.BrickColor == "Navy Blue" then
wait(2)
Part.Position = (TelePos)
end

No errors, the local script is in the part.

Wha I am trying to do: If the part is Navy blue than it teleports to the position in TelePos.

Not sure why this is not working any help would be appreciated

As you said, the LocalScript is inside the Part. If the part is in workspace, the LocalScript won't run, place somewhere that is listed in here.

https://developer.roblox.com/en-us/api-reference/class/LocalScript

Second, to update positions, you need to use Vector3.new(). Your code should be

local TelePos = Vector3.new(-31, 34.5, -103.5)

Lastly, to check brickcolors, you need to use BrickColor.new(). Your code should be

if Part.BrickColor == BrickColor.new("Navy blue") then