Ouch that's a nasty one. Like others have said, you can either find the touch up paint and just touch it up or bring it to a body shop for a professional job. I touched up a much smaller scrape, others don't notice it but I know it's there.
My wife's Infinity had a few parking lot nicks and the Service Rep showed me how to get the best results with the touch up paint. He said the trick is to lay the paint in the scratch using absolutely as little paint as possible. Let it set up then go over it with the clear coat. He said with the base coat, get the brush as dry as you can get it and just ease the color right into the scratch. Wish I'd video'd him doing it.
2014 Berkshire 390RB-60
2014 Jeep Wrangler Unlimited
Roadmaster Falcon A/T tow bar
Of course I'd like to keep my coach like new but I have come to the realization that things happen. I recently - just this trip because I got a ding - that each scratch or ding reminds me of where I was with the family.