Better looking raceway for under the patio?
You can paint it. Given that it's presumably an exterior location, none of the other acceptable options really look all that much better. Either paint or enclosing in a trim box are your likley good options for "better looking."

Edit, responding to comment: Terminology nitpick - sweeps or bends - we never use "elbows" in conduit, you can't pull wire around a sharp bend. Same in ground or out of ground. What you do need (and want, though you may think otherwise when you see the price) is a conduit expansion joint at each place where you go from underground to above-ground. 



If you don't use them, the conduit can be broken as the ground freezes and thaws. Ideally you will also use schedule 80 if the conduit is "subject to damage" which the part coming out of the ground is often taken to be - if you haven't bought it yet, I'd suggest considering schedule 80 for the whole run, though it means you will have to shop a real electrical supplier, not a home improvement store. It costs only a little bit more in most cases.

You will also do yourself a favor if you clean up any sharp edges on the inside end of the conduit before assembly.