1. Display Testing
Open this page on your target device. Switch between pure black and white to check backlight bleed, IPS glow, and panel uniformity. For OLED panels, black should be perfectly uniform with zero light emission.
Press any key or click for full screen
Scroll down to explore features
#000000 Click anywhere or press F11 for full screen
Black Screen
A pure black (#000000) full-screen display tool: test for dead pixels, save battery on OLED, clean your screen, or run a distraction-free focus session — right in the browser, no ads, no sign-up.
Black Screen — Full-Screen Display Test & Solid Color Tool
🖥️ Dead Pixel Test
Toggle between pure black (#000000), white, red, green, blue to identify stuck or dead pixels. Auto-cycles every 3 seconds in full screen.
🔋 OLED Energy Saver
On OLED displays, pure black pixels are completely off — use as a minimalist ambient screen. Keeps your display awake while it runs.
🎬 Video Editing Background
Use as a clean black backdrop for product photography or video compositing — pure black absorbs stray light and kills reflections.
🎯 Focus Mode
Black reduces visual noise — perfect for meditation, eye rest, or deep work. A dim countdown keeps you on track without distracting you.
💡 Screen Clean Test
A black background makes dust, smudges, and scratches instantly visible — shine a flashlight across it to spot every speck before wiping.
Full screen test colors →📱 Multi-Device Mirror
Open this page on phone, tablet, and desktop — the same pure black everywhere makes it easy to compare display uniformity across devices.
Solid black color page →Black Color Values & Conversions
| HEX | #000000 | |
|---|---|---|
| RGB | rgb(0, 0, 0) | |
| HSL | hsl(0, 0%, 0%) | |
| CMYK | cmyk(0%, 0%, 0%, 100%) | |
| HSV | hsv(0°, 0%, 0%) |
Need other colors? Try our Solid Color Generator for any hex code → full-screen preview, or the solid black color page for shades, tints and CSS snippets.
Why pure black instead of near-black?
Near-black shades like #0a0a0a and
#111111 look softer in UI design, but
they are not actually black — on OLED they light every pixel slightly, which costs battery and shows a faint gray
glow in a dark room. Only #000000 turns
pixels off completely, which is what makes the OLED Energy Saver mode and a true backlight-bleed check possible.
For display testing the rule is simple: if you can see any glow at the edges of a full-screen #000000 in a dim room, that's backlight bleed on an LCD — or a panel that isn't genuinely reproducing black. Softer alternatives like charcoal are great for everyday dark-mode backgrounds, but keep this page's pure black for testing.
How to Use Black Screen Effectively
2. Photography & Video
Use full-screen black as a clean background for product shots. Pair with external lighting to eliminate reflections — pure black absorbs all light, making your subject pop.
3. Focus & Productivity
Set a black screen on your secondary monitor while working to reduce peripheral distractions. Combined with the built-in focus timer, this creates a distraction-free workspace.
Frequently Asked Questions
What is a black screen used for?
A black screen is commonly used for display testing (checking dead pixels and backlight bleed on LCD/OLED panels), video editing backdrops, eye strain relief, focus sessions, and screen cleaning. On OLED displays, pure black pixels emit zero light, making it ideal for an energy-saving ambient mode.
How do I test for dead pixels with a black screen?
Set your display to full-screen black (#000000). Look closely for any bright or colored dots — these indicate stuck or hot pixels. Cycle through black → white → red → green → blue to identify which subpixels are affected. Use our built-in Dead Pixel Test tool for automated cycling.
Does a black screen save battery on OLED displays?
Yes. On OLED/AMOLED displays, black pixels are completely turned off and consume zero power. Using a full black screen on OLED phones, tablets, or monitors can significantly extend battery life. Try our OLED Energy Saver mode for an always-on black display that also keeps the screen awake.
What is the hex code for pure black?
The hex code for pure black is #000000 (RGB: 0,0,0 | HSL: 0°,0%,0% | CMYK: 0,0,0,100). This is true black — the darkest possible color in digital displays. Some designers use near-black shades like #111111 or #0a0a0a for a softer appearance; our charcoal color page covers the most popular option.
How is this different from other black screen websites?
Unlike basic black screen tools, SolidColor offers integrated display testing (dead pixel checker), OLED energy saver mode with screen wake lock, a built-in 25-minute focus timer, and full color value conversions — all in one page. Plus seamless access to 40+ solid color backgrounds and tools like the contrast checker and palette generator.
Related Colors & Tools
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