This may be specific to your site

[mgifford]

I haven't got this working yet in mine, but on your site you have:

<div class="tags-container" style="color: rgb(119, 119, 119); background-color: rgb(255, 255, 255);">

I think you should make this rgb(118, 118, 118) but I haven't been able to find it in the source, so probably site specific.

[mgifford]

Actually, they appear here so they must be in the theme somewhere https://elementary-jekyll.github.io/post/readability-post

[abhn]

Interesting, I'm not able to see the inline styles anywhere in the code or on the page you've linked. I do have some color and background-color, but that's on the anchor link and not on the .tags-container class itself.

Happy to make the change if you could find me the element :P Cheers!

[mgifford]

I think WAVE defaults to an rgb() rather than a hex. Here are two screenshots. Sorry no alt text.

[abhn]

Thanks, now it makes sense.