OK. So I've had to learn a
LOT about monitors in the past week just to get mine to sort of where I need it to be (I'm still tweaking it here and there).
No matter what I did, the colours (red and pink/purple especially) just didn't seem right. Even turning down the saturation didn't seem to sort it out, and I had an issue with everything seeming a bit washed out, too. Blacks seemed more grey, and white was just still way off. Scoured the internet (not all that many seem to have this monitor yet, or at least, have solutions to their issues), and slowly started losing my mind - I was getting ready to box it up and send it back (I even thought about buying a colourimiter)!
Luckily, I saved myself about £150. Here's what I did (your mileage may vary as all panels seem to be calibrated differently at the factory, and your personal preferences may be completely different anyway):
- ICC Profile: sRGB IEC61966-2.1 - I tried other ICC profiles (the Dell one that came with the driver was the first - a custom profile from a reviewer was another). They were OK, but for some reason every time I opened a web page that had a large amount of Red on it (Skysports, for example), the Red would shift to an Orange shade after a couple of seconds. Worst part was when I noticed it for the first time - I simply could never unsee it! I also support a football team whose kit is Red, so visiting their page started making me question my allegiance. I then noticed that Green did it, too. So, I settled on the sRGB profile, which didn't shift any of my colours and that, well, works. Important thing about custom ICC profiles from reviewers, and even the manufacturer, is that it has been calibrated to their panel, and even though you may have the exact same model, it's the individual panel that matters here.
- Contrast: 90 - this helped separate the blacks and make them look, well, more black.
- Brightness: 77 - about as high as I can comfortably push it before it starts burning my retina. 75 (default) and lower just makes the whole screen seem way too dark for my liking.
- Preset Modes: Custom Colour - allows you to fine-tune the colours, and I found the rest of the presets not to my taste, anyway.
- Gain: R = 91, G = 90, B = 96 - got the White temp to just about where I want it (see: retina).
- Saturation: R = 40, G = 40, B = 45, C = 50, M = 30, Y = 45 - the absolute worst offender was Magenta (made every Pink/Purple shade look like Hot Pink), followed by Red. The only default is Cyan. After 1-6, which literally took me hours to work through, something still didn't seem right. And then I randomly stumbled across a post somewhere that mentioned...
- Hue: R = 55, G = 45, B = 55, C = 50, M = 60, Y = 50. Again, Magenta was the worst - it was just so off, with Pinks looking more Purple. Red was also a lot colder than I liked, too. Ultimately, how I got this part done was to set my up old monitor (Dell U2415) next to this one, and literally just go colour-by-colour until I'd matched them to what I was used to. Finally, the colours looked way more natural! Well, to my eyes, anyway. I get this is a "gaming" monitor, but damnit, Dell, the out-of-box colours are insane! One would assume that the shades would at least have been accurate.
I hope that this helps someone out there. Again, note that all the above settings are completely personal, but at least now you'll know what to look out for when you get there. Honestly, while I'm happy to finally have the monitor I spent almost £400 on looking mostly right (it performs amazingly well at 1440p and 165hz with Freesync), I'm quite disappointed at how much time I had to spend just getting it right just because the default settings were so far off. Especially considering that a monitor I had spent far less money on 4 years ago worked right out of the box without having to touch anything
ever.
Edit: might be worth mentioning. I have the S2721DGF
A (only difference to the DGF is that this one has new firmware apparently - and has had the brightness set lower because of EU regulations, but is still somehow a G-rated energy product) and am using an RX 6700 XT on the latest AMD drivers. When I first got it, I was running it on a GTX 1070 with the latest nVidia drivers - neither card or driver seemed to affect my colours in any way.