Remove Entity Colour?

I have added a few lines of code which makes weapons turn a certain colour depending on who picks them up, but I would also like the colour to be removed when the weapon is dropped.

Would anyone be able to assist me? It should only be a line or two? :stuck_out_tongue:

[lua]function SWEP:OnDrop()
self:SetColor(Color(255,255,255,255)) – this is for GM13 (Beta); for GM12, use SetColor(255,255,255,255)
end[/lua]