Board Thread:Wiki Discussions/@comment-4704473-20140416230513/@comment-1210805-20140420143100

So by using the first chapter preview on the site, I can tell you the Rasengan is yellow in chapter 227, towards the end of Part 1. That's the earliest view of it I can get. The most recent is chapter 545 (the first chapter of the second most recent colour volume), where Naruto uses Mini-Rasenshuriken, Spiralling Absorption Sphere and Spiralling Strife Spheres, all of which are depicted as yellow.