FML, I've had to try to color matching by eye before between different screens by the same manufacturer.
For whatever reason I wasn't provided with any calibration tools. I had some vague software tools to try and get them to align.
I spent like 8 hours trying to match these for the corporate brand colors, while still looking decent for everything else.
Shit is near impossible. If the manufacturer couldn't do it, how am I supposed to?! And with awful interfaces and no concrete way of measuring.
Like, I was taking pictures of the screens, then trying to figure out offsets and how they might relate to gamma triangles.

Client was appreciative of my (and fellow techs) efforts, but ultimately wasn't happy, and it looked shit.
That was awkward as fuck.

There's got to be a sublemmy of graphic designers who'd love this meme

There's a joke here, but you can only see it with a screen using the ProPhoto RGB colorspace:

Used to be in charge of wet proofing and colour management for a design studio. Accurate meme.

Excuse me while I do my RGBtoHSV conversion in my pixel shader

I don't get it.

Related article about how the language for colors evolved.

I mean... 'I would like green apples please' is a perfectly sensible sentence

Stop doing call and responses We already have this using callbacks