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RE: Colour contrast on logos

From: Patrick Lauke <P.H.Lauke@salford.ac.uk>
Date: Wed, 18 Jan 2006 10:54:15 -0000
Message-ID: <3A1D23A330416E4FADC5B6C08CC252B9FD6DFB@misnts16.mis.salford.ac.uk>
To: <w3c-wai-ig@w3.org>
> Charles McCathieNevile

> The point about contrast is enabling people to see things. If 
> the logo is  
> textual, but too low contrast to read, the odds are that it 
> is too low  
> contrast to be recognisable in any case, which means it isn't 
> doing its  
> job as a logo. (Note that contrast is higher priority for 
> images than for  
> text, since in principle you can more easily change it for text).

I'd also say that adding alt will be of limited to no use to users affected by low contrast, i.e. sighted users with images turned on. A tooltip showing the alt/title can also not be relied on, as users with a pointing device may not have a reason to place their pointer over the image long enough for the browser to pop up the tooltip, and users navigating via the keyboard don't currently (as far as I know, anyway) have a way of getting titles to display at all (and also, the image would obviously need to be in a link or other "tab-able" element).

Patrick H. Lauke
Web Editor / University of Salford

Web Standards Project (WaSP) Accessibility Task Force


Received on Wednesday, 18 January 2006 10:54:30 UTC

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