Solid Color Screen
Turn the whole screen a single colour: black, white, red, green, blue, gray or any custom shade typed as HEX or RGB. A black screen is handy for checking light bleed or showing nothing during a presentation, pure red, green and blue reveal stuck sub-pixels, and a custom colour works as mood lighting or a chroma backdrop.
Choose a Screen Color
Colors only change when you press a button or an arrow key, never automatically, and at most three times per second.
How to Use the Solid Color Screen
- Pick a Color mode. Choose Custom to use the color picker or type a HEX or RGB value.
- Check the preview in the display area; its name and code are shown in the control bar.
- Press Full screen or Fill window. Use Previous color, Next color or the left and right arrow keys to switch.
- Press Exit full screen or Escape to return.
About This Tool
People testing a new monitor or phone, presenters who need a blank screen, photographers and streamers who want a coloured light source, and designers previewing a brand colour at full size.
Input: Color mode or HEX / RGB · Output: Full-screen color display.
Features and Limitations
Features
- Seven modes in one tool, including a custom colour with picker plus HEX and RGB input that stay in sync.
- The colour name and code are always written in the control bar, so colour is never the only cue.
- Keyboard friendly: arrow keys and Space step through colours; key-repeat is limited so the screen can never flash quickly.
- In-window fallback when the browser refuses full screen.
Limitations
- Displays cannot show every colour exactly; the result depends on your panel, colour profile and night-light settings.
- Custom values must be valid 8-bit colours (0–255 per channel); alpha transparency is not supported.
- A web page cannot change the display's backlight, so a black screen on an LCD still glows slightly.
- Results are computed in your browser; nothing you enter is sent to a server.
Example
Typing rgb(0, 177, 64) fills the screen with a
chroma-key green; #000 gives pure black.
Frequently Asked Questions
Why does my black screen still glow?
LCD panels use a backlight that stays on behind black pixels. OLED screens switch black pixels off completely, so they look truly black.
Can I use this as a green screen for video?
Yes for small set-ups: choose Green or a custom chroma green and place the display behind the subject. A large evenly lit fabric screen keys more cleanly.
Does the colour change by itself?
Never. It changes only when you click, tap or press an arrow key, and even holding a key down is limited to three changes per second to avoid flashing.
Which formats can I type?
HEX (#f80 or #ff8800), CSS rgb(255, 136, 0), or three numbers separated by commas or spaces.
Related Tools
More like this: all Solid Color Screens tools, all Screen & Display tools or the TinySandy home page.