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websymphony
Good job. It is kind of addicting. I think a point system that depends upon the degree of color match along with time taken, will make it even more interesting.
Brashman
Yes, rewarding faster matches would be good.
bretthopper
This is really impressive and well made. Love the design and UI in addition to the game just being fun. You can see how much thought went into it when you see how the scores are presented after you completed the game.
rachelbythebay
I found the UI difficult and frustrating. Even after I gave it a second try, once it got to "complimentary", it went back to being frustrating and annoying. I left it after that point.
aviv
I love it. Great job.
danso
Great work. I've already been more fulfilled with this than I have with the multimillion dollar Color startup...

It'd be cool to see the actual deviation in numbers...I feel that some of my "perfect" matches were just shots in the dark.

duopixel
The formula for finding the difference in color is CIEDE2000, http://en.wikipedia.org/wiki/Color_difference#CIEDE2000, the actual number is quite meaningless, but in case you're interested:

  score = "perfect" if distance <= 2
  score = "very good" if distance > 2 and distance <= 6
  score = "good" if distance > 6 and distance <= 12 
  score = "average" if distance > 12 and distance <= 18
  score = "poor" if distance > 18
The score is more strict on the first exercise (Hue only)
simonbrown
Clicking on the outer ring before starting the game still registers and gives you a score.
duopixel
I'm the author and I submitted it last night, not sure how it went through the repost filter. http://news.ycombinator.com/item?id=3503758 but glad to see it again.

In addition to d3.js and Raphael, it uses an implementation of Lab for D3 by Jeffrey Heer https://github.com/mbostock/d3/pull/183, and the colorblind implementation uses superformulas for D3 by Christophe Viau http://bl.ocks.org/1020902

danso
This would make for a hugely successful phone app. Well, if you added some kind of animal theme to it too. Bears...trying to find their bear cubs. (sorry, afternoon slump)
w-ll
Superformulas is very cool, but I dont understand whats wrong with their triangles demo (the last one).
jpastika
More fun than I was expecting. Going in I thought it would be more of a test, but the game aspect made me want to keep playing. I ended up with a 9.3!
WesleyJohnson
Ended up with 1 "Poor", several "Perfects" and mostly "Very Good" and an 8.7 overall score. Very addictive game and well put together. I may have overlooked, but is the source available? I probably should of just checked "View Source".
duopixel
You mean to view? Yes, it's all there though it is js generated from coffeescript. As for using it for personal projects go ahead, though I'd say the code is obfuscated by incompetence :)
Nic0
> Very addictive game

It's funny, I was thinking to myself, who could possibly play this game twice. I might misjudge as I'm not a big player myself, but I really through the interest of this was more techniques used (e.g. raphael.js) than the game itself. But I agree, nice UI, nice design and good idea.

el_devo
As a person with red-green color deficiency, I got a 3.1. I'm proud of that!
nickbarnwell
Be sure to try the colour blindness assist. It's one or the most innovative ways of approaching it I've seen, and worth it for even the non-impaired to try.
VBprogrammer
Interestingly, as someone else afflicted with red-green colourblindness I didn't really struggle that much with the colourblind assist off.

I think it is because when the colours are displayed exactly side by side it isn't nearly as difficult to match them up than it would be for you to ask me to pick out that same colour from a pallet of similar colours.

el_devo
I went back and used the assist, and this time ended up with a 7.8. It was a much better experience!
jasonkolb
At first glance my reaction was "Wow, what a pivot! I wonder if their VC's are pissed yet and want their 40 million back yet?" :)

But anyway, very cool. I'm loving watching all the interesting projects using d3 lately.

mutagen
That was fun. One thing I'd suggest is previewing the new widget during the countdown to a new test, the two dimensional transition to saturation threw me off a bit as my brain came to grips with the new representation.
rjurney
Very cool. Challenging.
netnichols
Very nice!

The only complaint I have is that I kept on associating the position of my mouse with a particular circle or segment. Then sometimes nothing would behave like I expected, and I would then spend a significant amount of time trying to figure out which circle to associate with which segment. It didn't seem to me that this is really part of the 'gameplay', it felt more like trying to figure out which keys to use for a new game... but then for every level.

It's hard to say without actually trying it, but I think having the internal segments 'follow' their respective circles would have been much more intuitive for me.

Groxx
Very neat, though I've noticed that I can get 'perfect's while I can still see the difference... intentional?

Anyway, creepily addicting once you start :D Great job in every way.