Fern Screen
A full-screen solid fern color (#4F7942). Fill your whole display, or download the fern screen as an image in 480p, 720p, 1080p, 1440p, 4K or any size you type in.
Advanced — print resolution (DPI)
What is a fern screen?
A fern screen is simply a web page filled edge to edge with one solid color — Fern, hex #4F7942, or rgb(79, 121, 66). It is a mid-toned, cool color: in HSL it sits at 106° hue, 29% saturation and 37% lightness, and its relative luminance is 15.7%. The closest standard CSS color is Dark Olive Green (#556B2F).
Fern screen at a glance
How a full-screen fern (#4F7942) behaves as a light, a test pattern and a background — measured from the color itself.
| Brightness | 16% of a white screen | A dim glow — easy on the eyes in a dark room. |
|---|---|---|
| Blue light | low (17% of its light) | Less blue than a white screen (33%). |
| Night use | Good | Dim and low in blue light, so a fern screen works as a night light without being harsh. |
| Text on it | White text · 5.1:1 | Readable for normal text (WCAG AA). |
| Display test | Mixed sub-pixel levels | Good for spotting uneven backlight, banding and tint across the panel. |
What people use a fern screen for
Its low blue-light output also makes it a comfortable screen to leave on at night.
Green screens are best known for chroma-key video: streamers and filmmakers fill a display with pure green to key themselves onto a different background. Green is also the channel the eye is most sensitive to, so a green field is a sensitive test for panel uniformity and stuck pixels, and a softer green makes a calm ambient light.
As a test pattern, a flat fern field makes a dead or stuck pixel jump out.
#4F7942) — this is also the preview image shown when you share the page.How to use the fern screen
The color is already set to Fern (#4F7942). Tap Open full screen, or the preview, to fill your whole display with fern; press Esc or tap again to exit. To keep a copy, pick a size — 1920 × 1080 for a desktop wallpaper, 1080 × 1920 for a phone or 3840 × 2160 for a 4K TV — and tap Download PNG or JPG. The file is created in your browser and saved as fern-screen-1920x1080.png, with no watermark. A flat fern image compresses to a few kilobytes even at 4K.
Every resolution, aspect ratio and device tip (phones, TVs, projectors, second monitors) is in the full color screen guide.
Fern screen color codes
The full-screen color and every download use exactly these values. Tap any row to copy it.
Contrast against white text 5.07:1 · against black text 4.15:1. See the full Fern color page for harmonies, shades and tints, or open it in the color picker.
Colors that go with a fern screen
Using two screens side by side, a split display or a fern wallpaper with accents? These named colors sit in harmony with Fern on the color wheel:
Build a full scheme from fern in the color matcher or the palette generator, or blend it into another color with the gradient creator for a gradient wallpaper.
Popular color screens
The colors people reach for most often as a full-screen background or light:
Colors similar to Fern
More green screens
Fern screen — FAQ
What is the hex code for a fern screen?
A fern screen uses the color Fern, hex #4F7942 — rgb(79, 121, 66). The full-screen view and every download use exactly that value. The nearest standard CSS name is Dark Olive Green (#556B2F).
How do I make my whole screen fern?
Open this page and tap Open full screen (or tap the preview). Your browser fills the entire display with fern and hides its own toolbars; press Esc or tap the screen to come back. To keep it, download it in 1080p, 4K or any size as a free PNG or JPG — no sign-up or watermark.
How bright is a fern screen?
A fern screen gives off about 16% of the light of a white screen at the same brightness setting, a comfortable level for ambient light. About 17% of its light is blue (a white screen is 33%), which counts as low blue light.
What color text is easiest to read on a fern screen?
White text, with a contrast ratio of 5.1:1, which passes the WCAG guideline for normal text. Check any other pairing in the contrast checker.