What Pokemon have inconsistent colors throughout the series? Raichu for example, they can't seem to decide whether or not it's actually orange or just a shade of yellow. It's gen 3 sprite is noticeably much more yellow than it's gen 4 sprite. While it's model in the 3DS games is very yellow too. It's depiction in the anime is very clearly orange but the official art isn't that exact shade. It's dream world art is also different color as well.

What do you guys think the "canon" color of Raichu is and what other Pokemon are in a similar position?