- From: Wayne Dick <wayneedick@gmail.com>
- Date: Thu, 3 Nov 2016 11:00:56 -0700
- To: Glenda Sims <glenda.sims@deque.com>
- Cc: Alastair Campbell <acampbell@nomensa.com>, LVTF - low-vision-a11y <public-low-vision-a11y-tf@w3.org>
Thanks Alistair, That looks right. Wayne On Thu, Nov 3, 2016 at 10:34 AM, Glenda Sims <glenda.sims@deque.com> wrote: > Great idea, Alastair. +1 > > G > > P.S. And as a fall back position, we could add an option to provide an > easily findable "good contrast version" of an info graphic...as an > alternative. My thought is...it would give designers a way to have more > flexibility (if needed)...while still have a fallback infographic with good > contrast...and hopefully, most designers would find that they prefer to make > only one version of the graphic because it is less work. > > > > glenda sims | team a11y lead | deque.com | 512.963.3773 > > web for everyone. web on everything. - w3 goals > > On Thu, Nov 3, 2016 at 11:56 AM, Alastair Campbell <acampbell@nomensa.com> > wrote: >> >> Hi Everyone, >> >> >> >> Immediately after the call I started putting Glenda’s update to the SC >> text in, and whilst doing that the similarity with the current 1.4.3 sprang >> to mind. >> >> >> >> How about aligning more closely with 1.4.3? >> >> >> >> ---------------- >> >> The visual presentation of important information in graphical elements has >> a contrast ratio of at least 4.5:1 against the immediate surrounding >> background, except for the following: >> >> >> >> Thicker lines: where the minimum width of the line is at least 3px the >> graphic has a contrast ratio of at least 3:1; >> Incidental: Graphical elements that are not required for the understanding >> of the graphic, that are pure decoration, that have the information >> duplicated elsewhere on the same page have no contrast requirement; >> Logotypes: Graphics that are part of a logo or brand name have no minimum >> contrast requirement. >> >> ---------------- >> >> >> >> I went with “graphical elements” to open up the further description to >> sub-graphics, e.g. a line in an info-graphic is a graphical element, and if >> it is important then it should have contrast against its surroundings. >> >> >> >> As I said, if anyone has particularly good/bad examples of graphics please >> send them to me and I’ll try testing this against them. >> >> >> >> -Alastair >> >> >> >> -- >> >> >> >> Alastair Campbell >> >> >> >> www.nomensa.com >> >> tel: +44 (0)117 929 7333 / 07970 879 653 >> >> follow us: @we_are_nomensa or me: @alastc >> >> >> >> Nomensa Ltd. King William House, 13 Queen Square, Bristol BS1 4NT >> >> Company number: 4214477 | UK VAT registration: GB 771727411 > >
Received on Thursday, 3 November 2016 18:02:09 UTC