Board Thread:Episode Discussions/@comment-1251315-20160929105457/@comment-734582-20161001110318

Seelentau wrote: despite being lightning chakra, which - if we go by logic - should be yellow. Lighting is actually more like white, blue-white.

But yea the color of chakra varies all the time. Besides, every time chakra color came up, it was metaphorically. E.g. Naruto likens Kyubi's chakra to red and his own to blue. Then he likens his to yellow.