They're intentionally non-matching. Awhile back I may have mentioned (did on Twitter) that I had one of these two (the left one, above) but had lost the original second sock, and finally had to start over, knitting the right sock from scratch. Well, today I found the missing other sock.
Here it is, laid out crosswise next to the pair. Looks quite different:
Now I need to knit a sock to not-exactly-match the sock that went walkabout so long, so it has a partner. That top sock is ready for its toe, so it will sit there quietly while I do another top, heel flap, and foot part. The toes, I'm afraid, will have to be a nonmatching blue (close, but not the same)--the blue that Ella rae Classic used to make before the blue that's used here. I think (but am not sure) that I have just enough of the new blue to make the top and heel match, and can then use the old blue on both toes. I may well run out of green, though. (keeping in mind that most of these stripes are made with leftover yarn. When I get back from WorldCon, I can photograph the Rainbow socks outdoors in good light.