- From: Jonathan Avila <jon.avila@levelaccess.com>
- Date: Thu, 27 Jun 2019 15:40:23 +0000
- To: Alastair Campbell <acampbell@nomensa.com>
- CC: WCAG list <w3c-wai-gl@w3.org>
- Message-ID: <BN6PR03MB3139BE2452F55DFB510B845AF1FD0@BN6PR03MB3139.namprd03.prod.outlook.com>
HI Alastair, Sorry I must have missed 12. I can’t perceive the change at all – only the blinking caret. 11b is better compared to 11 for although I have typical color vision. Jon From: Alastair Campbell <acampbell@nomensa.com> Sent: Thursday, June 27, 2019 11:14 AM To: Jonathan Avila <jon.avila@levelaccess.com> Cc: WCAG list <w3c-wai-gl@w3.org> Subject: Re: Focus (more) visible CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi Jon, Thanks for that, so I’m concluding a few things from your experience: * Example 3 barely perceivable `if tabbing -- If looking at it without tabbing – it’s not perceivable to me at all. That is a light-grey outline being added whilst on a white background. That means we cannot use an contrast measure such as “contrasts with either adjacent color”. * Example 8 not perceivable at all That is basically the same as example 3, but highlighting the problem with using currentColor on a component with an internal background. * Example 11 colors not perceivable – any color changes is swallowd up by the high contrast colors and effectively it is not visible to me. I see the blinking caret and I see some sort of size change in the boxes – that’s it. In this case the ‘change of color’ is adding a white outline to a white box, which does makes it look bigger. It is a very extreme version of the Gov.uk search box, which uses yellow instead of white. Apart from real mono-chromatic vision, if someone uses a yellow color instead of white, I think that would be very perceivable. I added an example 11b using yellow, does that help? Same sort of contrast, but a more realistic usage. * Example 13 barely perceiveable if tabbing –barely perceivable if not tabbing. Blinking caret is close to left edge making it difficult to detect caret. That is interesting, it is a dark grey outline at the mid-point between white and black so it should contrast with both. I’m afraid that whatever measure we use that one would pass. I’m surprised example 12 was ok, I struggle with that one. Cheers, -Alastair
Received on Thursday, 27 June 2019 15:40:48 UTC