Paint Color Visualizer

A paint chip tells you what a colour looks like under a shop's fluorescent tubes. Your wall is lit by a north-facing window at 4pm, next to a warm oak floor and a grey sofa, and the same chip will read three shades cooler there. That gap is why people buy sample pots, paint a patch, hate it, and live with it for a year.

A visualizer closes most of that gap without the patch. Upload the photo, name the colour, and the model repaints only the wall surface — keeping the furniture, the floor, the shadows and the time of day exactly as they were. You are not looking at a colour; you are looking at that colour in that room.

• Works on walls with pictures, radiators and furniture in front of them.
• Keeps ceiling, trim and floor untouched so the comparison stays honest.
• Test two colours side by side by generating twice and swiping between results.

The colours people actually search for cluster into four families, and each one fails in a predictable way. Warm whites go pink under tungsten light. Greiges go flat in a north-facing room. Sage reads grey once the sun goes down. Deep greens and navies look spectacular in a render and can swallow a small room with one window.

• Warm white — safe everywhere, but check it at night before committing to a whole flat.
• Greige — needs a warm floor or it reads institutional.
• Sage and olive — best in rooms with two exposures; risky in a single north window.
• Terracotta and clay — beautiful with oak, punishing next to cool grey tile.
• Deep green or navy — test the darkest corner, not the wall next to the lamp.

Take the photo at the time of day you actually use the room, with the lights you actually use. Stand in the doorway and shoot wide; a close-up of one wall hides the corner where the colour will look darkest. Do not use flash, and do not apply a phone filter — the model copies whatever grade you feed it.

Then run the same photo three times: the colour you think you want, one shade lighter, one shade darker. The middle option almost always wins, because paint reads darker on a large surface than on a chip. If you are painting a whole flat, repeat on the room with the worst light — the hallway, not the living room.