Lime Screen
Lime sits near 555 nanometres, close to where human vision is most sensitive in daylight. That is why safety vests and emergency vehicles are this colour — for a given amount of light, nothing else looks brighter.
What people use the lime screen for
Maximum perceived brightness
If you want a device to be seen from across a room or a field, lime beats white for the same panel output. Useful for signalling and for finding a phone you have put down.
High-visibility aesthetic
Lime carries an unmistakable safety-gear look — good for sports, industrial and streetwear-adjacent visual work.
Alternative key green
When a subject wears standard chroma green, shifting the key surface to lime can give a keyer more separation to work with.
How to use the lime screen
- 1Open the lime screen — it fills the page immediately, no button needed.
- 2Press F or use the fullscreen button to go edge to edge with no browser chrome.
- 3Use the brightness slider to dial the output up as a light source or down for a dark room.
- 4Move the mouse or tap once to bring the controls back; they fade out on their own after a few seconds.
- 5Press a number key or use the colour strip to jump straight to another colour.
Frequently asked questions
How do I make the lime screen fill my whole display?+
Press F (or click the fullscreen button) to enter true browser fullscreen, which hides the tab bar, address bar and taskbar. Press Escape to leave. On mobile, tapping the screen hides the controls; add the page to your home screen for a fullscreen launch every time.
What is the exact lime colour used here?+
#BFFF00. You can copy it from the control bar, or open the colour picker to dial in any other value and keep it in the URL so the exact shade is bookmarkable.
Does this work on phones and tablets?+
Yes. It works in any modern browser on iOS, Android, Windows, macOS, Linux and ChromeOS. Nothing is installed and nothing needs an account.
Is it free, and are you tracking me?+
Free, with no sign-up. Every tool here runs entirely in your browser — no colour choices, screenshots or usage details are sent anywhere.