About Us

Why a whole site for one colour?

Because the alternatives are worse than they should be. Searching for a red image gives you photographs of red things, gradients dressed up as flat colour, and JPGs recompressed so many times they have visible mottling. Opening an image editor to fill a canvas takes longer than the task itself. Meanwhile the thing you actually wanted — a display showing one even colour and nothing else — is something a browser can do instantly.

So that is what this is. Press a button, the screen turns red, press Escape and it stops. Every control that matters sits within one press, and the colour surface is the centre of the page rather than an afterthought below a wall of text.

What you can do here

The main red screen opens a fullscreen field at #FF0000 with a slider that runs from a bright red screen down to a deep dark red. The dark red screen starts at #8B0000 for night use and black-level checks. The red screen background page generates downloadable images in HD, 4K, phone, and square sizes. The red screen on iPhone guide covers fullscreen, Auto-Lock, and the iOS colour filter.

Beyond red there are solid blue, yellow, orange, pink, and purple screens, because a proper display check needs more than one colour and a backdrop is rarely red by default.

Who ends up using it

People checking a panel for dead pixels before buying a used monitor or phone. Astronomers and night-shift workers who want a dim red light that does not ruin their dark adaptation. Photographers lighting a small object or filling a backdrop with an even colour. Streamers and designers using a spare screen as a colour accent. Developers comparing how a layout behaves against a saturated background. Teachers, technicians, and anyone who just needs a big flat colour for a minute.

None of those people want to sign up for anything. They want the colour, then they want to get on with what they were doing.

Honest about what it is not

These pages are practical tools, not calibrated test instruments. Every panel renders colour differently, and operating-system profiles, night modes, browser rendering, viewing angle, HDR settings, and room lighting all change what reaches your eye. A colour check here is a fast first look, not a diagnosis, and it cannot replace a colorimeter or a service centre.

The same applies to red light and night vision. The physics is real and the tradition is long, but a web page cannot promise you a particular effect on sleep, eye strain, or dark adaptation. Keep the brightness low, keep some distance, and stop if a screen feels uncomfortable.

Private because it never needed to be otherwise

The colour, the brightness, the fullscreen state, your cursor preference, and every downloaded image are handled entirely by your browser on your device. Images are drawn on a local canvas — they are never uploaded, generated on a server, or stored anywhere. There is no account, no login, and no reason for this site to know anything about you. The privacy policy covers hosting, email, and the small amount of technical data any website unavoidably sees.

Built to stay small

Every page is plain HTML and CSS with a small amount of JavaScript, which is why they load quickly on a slow connection and work on an old tablet or a smart TV browser. Fullscreen behaviour varies between platforms — iOS in particular handles it differently from desktop — so the pages fall back gracefully rather than breaking. There is no framework churn, no tracking pixel bundle, and no cookie banner to dismiss before you can see red.

The aim is that this tool works the same way in five years as it does today: open it, get your colour, close the tab.