Too much color: how many decimal places do you need?

Title: Too Much Color

https://news.ycombinator.com/item?id=47321206

Related from Keith: What's my JND? (this blog post is linked from there) (9 points 5 comments) https://news.ycombinator.com/item?id=47321188

(10 points, 6 comments) https://news.ycombinator.com/item?id=47321188

Their working is exceptionally thorough, all the concerns about additional maths and transformations is well considered. I really have to wonder if introducing any semantic-changing transformations for what I’m guessing are minuscule savings of bytes is worth it though. Safe things like stripping white space and shortening identifiers would be the major contributors to minification surely. How many CSS colours need to be defined for oklab rounding to even affect how many tcp packets are sent for instance?