I probably don't have to point this out to all you die hard beautyheads but, just as a disclaimer, a dupe is not necessarily meant to be a dead-on match but, a similar equivalent which is just as good if not better. Not all of the shades below are bang on for the Naked shades but, they would be a good substitute!
The dupes I found came from my (slightly sickeningly) large array of MAC eyeshadow palettes and, while I didn't manage to dupe all of the Naked shades, I did get a good majority of them meaning that, if there are only one or two you desire, or just want to make your own Naked palette using MAC, you now can!
Going from left to right, the first dupe I found was for Sin- a gorgeous pinky-champagne. MAC's Hush is pretty much the same though appears just a shade lighter due to the pigmentation and softness of the Urban Decay shadows.
|Sin (Bottom) and Hush (Top)|
Next is Sidecar, a light tan-taupe. Nothing perfectly matched this shade but, both Patina and Satin Taupe were good compromises!
|Patina (Bottom), Sidecar (Middle) and Satin Taupe (Top)|
Buck is the next shade and it's twin is MAC's Cork. Pretty much a dead-on match.
|Buck (Bottom) and Cork (Top)|
As soon as I got my Naked palette, I knew straight away that MAC's Amber Lights was a slightly orange-r dupe for Half Baked. And, I wasn't wrong but, Woodwinked also proved a surprisingly similar shade.
|Woodwinked (Bottom), Half Baked (Middle) and Amber Lights (Top)|
Smog is a very warm dark brown and MAC's Romp is a good match, though perhaps a little less dark and a little warmer. Same texture though!
|Smog (Bottom) and Romp (Top)|
The dark black with sparkles, Creep, is very like MAC's Black Tied though Creep has better payoff and is more pigmented.
|Creep (Bottom) and Black Tied (Top)|
Finally, Gunmetal, a dark blue-grey, is really similar to MAC's Knight Divine.
|Gunmetal (Bottom) and Knight Divine (Top)|
In the pan, a lot of MAC shades looked to be dupes for the Naked shades but, upon swatching side-by-side, the undertones of each came through and they weren't good enough to include here. If anyone can think of any other shadows, by any brand, to fill in the gaps here, leave it in the comments below!