Re: color blindness - To check specific color uses, try these 2 tools http://colorfilter.wickline.org/ e.g. http://colorfilter.wickline.org/?a=1;r=;l=9;j=1;u=en.wikipedia.org/wiki/Help%3ALink_color;t=n (and then click the options inside the floating navbox) http://www.color-blindness.com/coblis-color-blindness-simulator/ (upload an image, and then simulate it in 8 types of color blindness)
Tangentially, I compiled a link-dump of all the pages that document or discuss color blindness, at https://www.mediawiki.org/wiki/Talk:Accessibility#Colour-blindness_links_and_notes Re: an "accessibility pane" - I had a similar thought (and learned about some larger internet projects such as GPII that seek to explore the same), and put some notes at https://www.mediawiki.org/wiki/Talk:Requests_for_comment/Redesign_user_preferences#The_Appearance_menu I'll try to find some spare time to whip together a wireframe, later on if nobody beats me to it. :) On Tue, Sep 9, 2014 at 5:58 AM, Derk-Jan Hartman < [email protected]> wrote: > Well, this is difficult to draw many conclusions from when not knowing > exactly what kind of colorblindness, but.. > As far as I know, if you really can't tell the difference between > those blues and reds, then you have a rather rare form of > colorblindness of either monochramacy or Dichromacy > http://www.colour-blindness.com/general/prevalence/ > > However, there is a lot of details there. For instance, were some of > the links visited ? They have a different shade, and that might well > influence their distinguishability. Also with several of these > colorblindness forms it might also be difficult to distinguish blue OR > red links from the black text (in that case he might have interpreted > and communicated his problem incorrectly) > > You can try yourself with something like this palette comparator: > http://www.iamcal.com/toys/colors/ > > In general when you have two colors like these, they should have > differences in contrast, that almost always works even for colorblind > people. Over all, there are limits to what you can do however. > Changing the contrast might be disadvantageous for users with 'full > sight' for instance. You can't 'defensively' code against all types of > disabilities in the world, it would give you a very ugly website. > > A few times, I have considered adding an "accessibility" pane or a > link to a special page, that would allow you to set different skins, > font size, underlined links and other readability aspects of the code. > Such a pane could include settings for color filters for the different > types of color blindness that apply to the entire window (much like > your Operating System can have screen filters for this in it's > accessibility pane). I've never had the time to actually build it > though. > > DJ > > > > On Tue, Sep 9, 2014 at 1:55 PM, Amir E. Aharoni > <[email protected]> wrote: > > Hi, > > > > Disclaimer: Though I worked in an accessibility software company for > three > > years, I know almost nothing about color blindness, so this question may > be > > silly. > > > > A participant in a recent workshop for new Wikipedia editors workshop in > > Israel complained that he cannot tell red links from blue links because > he > > is color-blind. > > > > Has this issue ever been noticed or addressed by anybody? > > > > The only related thing I can think of is the option to show links to > > nonexistent pages with a question mark, which was disabled on Wikimedia > > sites a year or two ago. Is there anything else? > > > > Thanks. > > > > -- > > Amir Elisha Aharoni · אָמִיר אֱלִישָׁע אַהֲרוֹנִי > > http://aharoni.wordpress.com > > “We're living in pieces, > > I want to live in peace.” – T. Moore > > > > _______________________________________________ > > Design mailing list > > [email protected] > > https://lists.wikimedia.org/mailman/listinfo/design > > > > _______________________________________________ > Design mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/design >
_______________________________________________ Design mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/design
