Green Screen
A green screen is the standard backdrop for chroma keying. This page fills your entire display with #00FF00 — the exact value most keying software expects — so a spare monitor, tablet, or laptop can stand in for a physical green cloth.
What this colour is good for
- Using a second monitor or tablet behind you as a keyable backdrop for streaming.
- Testing how well OBS or Zoom keys out your existing setup.
- Downloading a clean green image for compositing and mockups.
A screen emits light; cloth reflects it. Screen-as-backdrop works best in a dim room with the screen brightness close to your face brightness, otherwise you get colour spill.
Frequently asked questions
Which green is best for chroma key?
Software defaults cluster around #00FF00 and #00B140. This page uses #00FF00, which most keyers recognise without adjusting the threshold. If your editor prefers a different value, use the colour input to set it.
Can a monitor replace a real green screen?
For a head-and-shoulders shot, yes, surprisingly well — as long as the screen is large enough to fill the frame behind you and you match brightness. You will lose the ability to cast shadows on the backdrop, which is fine for most calls.