ISSUE-134: COLOR CONTRAST

COLOR CONTRAST

State:

CLOSED

Product:

Addendum to BP1 (formerly known as mobileOK Pro)

Raised by:

Jo Rabin

Opened on:

2006-08-31

Description:

A prerequisite for this test is that the browser supports specifying
colors and background-colors.
Try setting the background-color blue and the link color white on a
Nokia phone. Tell me what you see.

I don\'t know about the very latest implementations, probably the
WebKit based browser supports it, but LOTS of devices don\'t allow you
to change link colors. The good reason for this is making sure that
link colors are consistent and that users will recognize easily links.
Are we going to declare all these browsers as \"not-good-for-MOK\"?

I don\'t think there are many devices falling in the DDC if you take
this specific \"problem\" with CSS.

- Andrea

Il giorno 29/ago/06, alle ore 20:25, Sean Owen ha scritto:

>
> Yeah I had thought about that, that you need to account for the
> background-color changing. This test is easily stated so I\'ll go with
> something much like this.
>
> Sean
>
> On 8/29/06, Jo Rabin <jo@linguafranca.org> wrote:
>>
>>
>>
>> Just being picky for a moment, shouldn\'t you test for the contrast
>> at the
>> body element and its nested elements by looking for changes both
>> to the
>> background-color and the color?
>>
>> For example, the algorithm as given would appear to allow white on
>> white at
>> the body level followed by progressive shades of very light gray
>> on white on
>> each nested element.
>>
>>
>> check the contrast on the body element
>> walk the tree of elements rooted at the body element
>> at each node of the tree
>> if either the color or the background changes
>> check the contrast change is acceptable
>>
>> This is in turn not quite right, I guess, in that there may be no
>> content
>> that actually has the colors specified on the body element, since
>> it may be
>> overridden by every child element ... and the same is true for
>> each child
>> too ...
>>
>> Jo
>
>

Related Actions Items:

No related actions

Related emails:

1. [minutes] Thursday Sep 18 teleconf (from dom@w3.org on 2008-09-18)
2. Re: Issues cleansing (from manrique.lopez@fundacionctic.org on 2008-09-16)
3. RE: Issues cleansing (from k.scheppe@telekom.de on 2008-09-16)
4. Issues cleansing (from dom@w3.org on 2008-09-16)
5. [minutes] F2F Meeting Day 2 - 6 November 2007 (TPAC) (from dom@w3.org on 2007-11-12)
6. [minutes] Thu 16 Nov (from dom@w3.org on 2006-11-17)
7. ISSUE-134: COLOR CONTRAST (from dean+cgi@w3.org on 2006-08-31)
8. RE: ISSUE-134: COLOR CONTRAST (from jo@linguafranca.org on 2006-08-31)
9. RE: ISSUE-134: COLOR CONTRAST (from luca.passani@openwave.com on 2006-08-31)
10. FW: Test for color contrast (from jo@linguafranca.org on 2006-08-31)

Related notes:

No additional notes.

Display change log