Dulux Room Visualiser Alternative, Indoor and Exterior Paint Preview

What the Dulux Room Visualiser does well — and where it stops

The Dulux Room Visualiser, made by AkzoNobel, has been one of the most downloaded paint apps in the UK for nearly a decade. It does a handful of things very well. The augmented reality mode is genuinely fun: point your phone at a feature wall, tap a Dulux shade and watch the colour appear in roughly real time. The curated palette is well organised by mood (calm, bold, neutral, bedroom, kitchen), so a homeowner who has no idea where to start can browse for fifteen minutes and arrive at three or four credible candidates. The mobile-first design works on most modern iPhones and Android handsets, and the brand provenance is reassuring: if Dulux says a colour is called Egyptian Cotton, then Egyptian Cotton it is, and you can walk into B&Q the next day and buy a tin.

Where the tool stops is exactly the line a serious decorating project asks you to cross. The first ceiling is brand lock-in. The Room Visualiser only shows you Dulux colours. The moment a friend mentions a Farrow and Ball heritage shade, a Little Greene period palette or a Crown trade colour, you are out of the app. You cannot test a HEX code that your interior designer emailed you. You cannot mix a Sandtex masonry shade with a Dulux interior shade on the same project.

The second ceiling is the surface itself. The Room Visualiser is built for flat indoor walls. It struggles with anything outside that scope: textured render, exposed brick, period cornicing, kitchen splashbacks, hallway dadoes. It will absolutely not paint your facade, your front door, your garage or your garden wall. For a homeowner planning a full repaint of a Victorian terrace, that is roughly half the job missing.

The third ceiling is the rendering itself. Live AR is fun but flat. The colour rides on top of the image without acknowledging shadows, daylight, the texture of an Anaglypta wallpaper or the warm bias of a tungsten lamp at six o'clock in November. The preview is good enough to rule shades out; it is rarely good enough to commit a sample order, let alone a full repaint.

Indoor workflow (rooms, kitchens, hallways)

Start with a clear daytime photograph. Pull the curtains back, switch the lamps off and shoot in landscape from the doorway so the AI sees as much of the room as possible. A wide shot of a sitting room with the sofa, the chimney breast and the window in frame gives a much more honest preview than a tight shot of one square metre of wall. Kitchens benefit from a shot taken from the threshold, with the splashback and the cabinetry both visible. Hallways are best shot down the length of the run, so the colour resolves consistently against the staircase and the skirting.

Once the photo is uploaded, pick a colour. You can browse our curated palette of warm neutrals, deep heritage shades and bright accent colours, or paste a HEX, a RAL number, or the name of a Dulux, Farrow and Ball, Crown or Little Greene shade. The AI renders the room in roughly thirty seconds. You see the chimney breast in Setting Plaster, the cornicing left untouched at original white, the shadows under the radiator still reading honestly. The image is downloadable, shareable, and easy to compare side by side with the original.

For a typical sitting room repaint, allow ten minutes from upload to final shortlist. Most homeowners try four to six shades before they settle, then walk into the paint shop with the photo on their phone and order a tester pot in confidence.

Lighting and accuracy

Paint colour is never just paint colour. A north-facing Victorian sitting room in Manchester at four o'clock in February reads completely differently from a south-facing extension in Brighton at eleven o'clock in June. The Dulux Room Visualiser largely ignores this: the AR overlay drops a flat patch of colour and lets you imagine the rest. FacadeColorizer's AI instead inherits the lighting that is already present in your photograph, which is the single most important variable for accuracy.

In practice, that means a warm white rendered against a sun-flooded south-facing facade will read warmer in the preview, exactly as it will read warmer on the real wall. A cool grey applied to a north-facing kitchen will trend a fraction blue, which is what the real paint will do. Shadows under windowsills, behind chimney stacks and along cornicing are preserved, so the shade reads as it does in the world rather than as a theoretical swatch under a showroom spotlight.

The honest disclaimer: AI rendering is a decision-support tool, not a substitute for a tester pot. Deep colours, especially saturated blues and greens, can shift more than the preview suggests once the second coat dries. For anything past mid-tone, order a sample, paint a square metre, live with it for forty-eight hours through morning, daylight and lamp-on evening, and only then commit to the full job.

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