Luminosity ratio question on images

Hello,

I hope everyone had a good weekend.

I have a quick question on where to draw the line with the luminosity ratio of images. There are a couple of scenarios on our website where we fail this check but, by the same token these could potentially be valid exceptions.


  1.  We have a series of awards/medals where the text is engraved in the medal. Each medal image accompanies some content about it. I include the text in the alt description but the medal itself would not pass the luminosity ratio test, because the text is effectively an engraved surface.
  2.  We have a lengthy series of research reports where, next to some text containing the report name, description and download option, a small jpeg of the report front cover is included. The text is tiny (as a thumbnail), so even if it meets the luminosity ratio test at the normal/larger size, it can't possibly as a thumbnail (where it is marked as decorative). Also, the occasional report front cover does not meet the luminosity ratio even at the normal size once downloaded as a pdf, but that's more to do with the production of the report than anything we have created for the website specifically, so it's not something that I can change overnight, although I will look at it.

Is it the case that you just accept that there are some scenarios that you can't change? The other alternative is not having an image, but I can't see that happening.

I have been using the WCAG contrast checker to help check the images on our website.

With kind regards,
Louise

This email (and attachments) are confidential and intended for the addressee(s) only. If you are not the intended recipient please notify the sender, 
delete any copies and do not take action in reliance on it. Any views expressed are the author's and do not represent those of IOP, except where specifically 
stated. IOP takes reasonable precautions to protect against viruses but accepts no responsibility for loss or damage arising from virus infection. 
For the protection of IOP's systems and staff emails are scanned automatically. 

Institute of Physics. Registered charity no. 293851 (England & Wales) and SCO40092 (Scotland)
Registered Office:  37 Caledonian Road, London, N1 9BU  

Received on Monday, 19 April 2021 09:26:53 UTC