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

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