driver side mirror

I've had good luck at www.paintscratch.com . Had the identical issue with my daughter's Mitsu. Turned out well. The color match was dead on. They have a good write up on how to apply paint.
FWIW
YMMV

thank you for the replies, if I get the paint from that link you provided , would it stick on top of the shinny black paint , because mirror comes shinny black ..

You'll need to sand, prime, then paint. Read the "How to Apply Paint" FAQ on the homepage.

paint shop asked 50 dollars, do you think it is worth it to pay that?

Unless you have other touch up work to do, I would say yes. That's a great price. Here in NJ a body shop wouldn't pee on your shoes for $50. The supplies alone would likely cost over $25 from Paint Scratch. In my case I already had the paint left over from a bumper repair so my cost to do the mirror was zero. I still have material enough to do more.
FWIW
YMMV