Hi, I got the answer from an expert :-) You'll find below the email I wrote to Rochester's Laboratory dedicated to color science, they have a webpage where one can ask color scientists about color perception among many other subjects: http://www.cis.rit.edu/mcsl/outreach/categories.php
So here is a scientific optimal color scheme, let start peeling our orange stickers ;-) "Thanks for your inquiry. Generally research on color contrast involves only two colors (such as text on a background), so this is definitely an interesting question. You have already identified black and white and they should certainly be included in your set of six. The next step would be to include 4 chromatic colors that are of intermediate lightness (i.e., not very dark or very light so that they are not easily confused with the white or black). While it is difficult to say what the optimum choices would be, there is probably very little to gain in performance once the colors are separated into distinct hue categories that would not be confused. For example, choosing yellow, green, blue, and red would be about as good as you can do. You just want to make sure that the blue and green are clearly distinguishable which might be accomplished best by making the blue slightly purplish. I hope this helps. -Mark" ... and here was the question I sent to them: Hi, I am a member of an internet forum dedicated to the Rubik's cube (I am quite sure you remember this puzzle !), and more precisely to speedsolving this puzzle. As you may remember, there are 6 different colors (white, yellow, dark red, orange, dark blue, and dark green), one for each cube face in the solved state. Each face is divided into 9 squares. Some people are able to solve the cube under 20 secondes on average, using a 7-step method. Steps 2-7 involve "instant" recognition of a case (1 out of ~50 for step 6, one out of ~20 for step 7 for example) and the execution of the memorized corresponding moves sequence. The question is, do you have an idea about the "ideal" color scheme that one should use for optimizing the color discrimination ability, hence decreasing the decision time ? This can be reworded as "what is the set of 6 colors (including black/white) that human eye is the best (=faster?) to be able to discriminate ?". I would be very happy if you have any idea or references about this topic ! Thank you very much for your answer Cyril --- In [email protected], "Gilles Roux" <[EMAIL PROTECTED]> wrote: We'd need some expert in color discrimination by the human eye to tell the perfect set of colors for speed-cubing. Black may be one of them. Gilles. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/speedsolvingrubikscube/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
