What a emerald screen is used for
- Natural-looking green backgrounds for photography
- Calm ambient screen light
- Design reference for green palettes
Emerald screen online: #50C878 at full screen
Emerald is a mid green with meaningful red and blue content, which is what stops it looking like a display primary. It is the green of a painted wall or a plant rather than the green of a keying backdrop.
Like mint, it is unsuitable for chroma key work — too desaturated, too much red and blue for a clean cut. The green screen page is the one for that.
How to get a full screen emerald background
Press the fullscreen button on the player above, or the F key. Escape returns you to the page. On a desktop browser F11 does the same job and hides the browser's own toolbars as well.
The colour box is a control, not a picture: use the hex field to enter any value, pick another shade from the palette, or download the current colour as a PNG at your screen's resolution. Whatever you set is written into the address bar, so the link you copy reproduces exactly what you are looking at.