Yellow screen
Fill your entire screen with pure yellow — warm, blue-free light for evenings, or a red-plus-green subpixel check. Click or press Esc to exit.
More color screens
Yellow screen FAQ
- What is a yellow screen used for?
- Mostly as warm light: pure yellow drives only the red and green subpixels, so the panel emits essentially no blue — a gentler reading or bedside light than a white screen at the same brightness. It's also a quick two-channel pixel check: a dot that's dark on yellow but fine on blue points to a faulty red or green subpixel.
- Is a yellow screen really free of blue light?
- On an OLED, effectively yes — blue subpixels are simply off. On an LCD the backlight always contains blue, and the color filters let a small fraction leak through, so it's a large reduction rather than absolute zero. Either way it's far less blue than white at equal brightness, and less than most 'night mode' filters achieve.
- Why does my yellow look greenish or mustard?
- Pure #FFFF00 sits right where small panel differences show: a display with a strong green primary or a cool white point pushes it toward lime, while warm color modes pull it toward amber. Compare the same page on another device — if only one screen looks off, that panel's color tuning is the cause, not the page.