Indigo Screen
Indigo sits between blue and violet at the short-wavelength edge of what we see comfortably. It is deep, saturated and slightly unsettling — which is exactly why it works for atmosphere.
What people use the indigo screen for
Moody scene light
Indigo reads as twilight, deep water or something faintly ominous on camera. A useful practical when blue is too plain and purple too playful.
Dark saturated backdrop
Low enough in luminance to sit behind a bright subject without stealing attention.
Test blue-channel depth
Indigo pushes blue hard while keeping overall luminance low — a place where weak panels show banding first.
How to use the indigo screen
- 1Open the indigo 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 indigo 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 indigo colour used here?+
#4B0082. 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.