It’s weird what the sun does to some colors. I had some shackles on myNeighbor has method wheels on his Tacoma, they were matte black but now with the sun and a few years are blue
When I got my 05 Wrangler the rim was scuffed in shipping, and had a rim replaced. So a good possibility.My guess is two of the wheels were damaged in transport.
The body shop then ordered the new wheels and didn't actually look to see if they were the correct match. I am also guessing the original dealer that did the tire rotation noticed and decided to do a front back rotation and not tell you what they noticed.