Hi, Rusty!
Yes, I am sure that your painter will be able to offer you helpful advice.
If you do go for a colour, then yellow or red sounds good!
Red will match your car - or do you have that hidden away in a garage?
(We don't have a garage, so our car is out on display!)
If you go for a metal door knocker, rather than a bell, you could possibly paint it with your metal paint to match your railings?
An idea?
I am thinking of doing a little more shopping tomorrow - only just locally down on the High Street for a few odds and ends....then hopefully finishing off the rest of the present buying when I go to Croydon on Thursday.
For "Ladies who Lunch" - the last meeting up this side of the New Year!