Maybe I am color blind, but it looks like Blue for Dems and Red for the GOP to me.
I think it has been edited since Ryan's election. When I first looked at it Ryan was listed as the 62nd Speaker, as I confirmed when I responded to another thread.
Interestingly he is being called the 54th Speaker by some sources. I presume that comes from only counting an individual once even if they served as Speaker on two separate occasions.
Now Wikipedia matches the number quoted by the press which is 54th Speaker, not double-counting return Speakers. My guess is the colors were edited then as well.