sRGB and P3: Why a Wallpaper Can Look Too Vivid
Wide-gamut screens can show more saturated colour, and that is exactly where things go wrong when an image never says which colours it meant.
Most images online are made for sRGB, a colour space defined in 1996 around the cathode-ray monitors of the time. Many current phones, laptops and OLED panels can show a wider range, usually Display P3, which covers roughly a quarter more colour, mostly in saturated reds and greens. The screen itself is fine; what matters is whether anything tells it how to read the numbers in the file.
That instruction is the embedded colour profile. A JPG tagged as sRGB is mapped correctly on a P3 screen, and its oranges stay orange. Strip the profile, which some compressors and messaging apps do to save a few kilobytes, or open the file in an app that ignores profiles, and the values may be sent straight to the wider panel: skin looks sunburnt, a teal sea turns nearly fluorescent and a soft pastel gradient picks up a cast it never had. The reverse also happens, as a P3 image on an older sRGB-only monitor tends to look a little flat, with its most saturated areas clipped to the same edge.
For a wallpaper the useful habits are small. Keep the original file rather than a screenshot or a forwarded copy, check whether it still carries a profile when colours look off, and compare it on the same screen with a photo you know well. Abstract fields of colour show the difference fastest, since there is no familiar object to tell the eye what the right shade was, and an image that looked gentle on one device can land on another like a stroke of highlighter.
In this collection
