Why paint colours look wrong in photos (and how to fix it)

You paint a feature wall a soft sage green. In real life it looks perfect. In your photo it’s somewhere between mint toothpaste and pond water. Sound familiar? Paint is one of the hardest things to photograph accurately, and the reasons are worth knowing if you’re sharing renovation progress or trying to pick between three sample patches.

Your camera is guessing

A camera doesn’t know what colour the light is. It has to guess, and that guess is called white balance.

Light sources vary enormously in colour. Warm household bulbs sit around 2700 to 3000 kelvin and look orange to a camera. Midday daylight is somewhere around 5000 to 5500K. Open shade on a clear day is much bluer, often 7000K or more, because the light is coming from blue sky rather than the sun.

Our eyes adjust to all of this without us noticing. A camera on auto white balance tries to do the same, but it gets fooled easily. A big wall of one colour is a classic trap: the camera assumes the scene should average out to neutral, so it “corrects” your sage green towards grey, or your warm cream towards a cold white.

Mixed light is the real villain

The hardest scenes have more than one kind of light. Picture a lounge with daylight pouring in a window on one side and warm LED downlights on the other. Each wall is lit by a different colour of light. No single white balance setting can make both look right, so one side ends up blue or the other ends up orange.

What to do about it

• Pick one light source. For colour accuracy, turn off the interior lights and shoot by daylight alone, or close the curtains and use only artificial light.
• Shoot in the middle of the day if you want daylight to dominate, rather than early or late when it’s warm.
• Move your sample. If you’re comparing paint colours, put the swatches where one type of light falls evenly across them.

Sun vs shade, north vs south

The same paint can look like two different colours on two walls of the same house. In New Zealand, north-facing rooms get the most direct sun, and that warm light flatters most colours. South-facing rooms get cooler, indirect light from the sky, which pushes colours towards blue and grey.

That’s not just a camera problem; it’s real. But a camera exaggerates it, because auto white balance reacts to each scene differently. If you’re photographing the same colour in two rooms to compare, use the same fixed white balance setting for both so the difference you see is the light, not the camera.

There’s also a deeper reason: metamerism

Paint colours are made by mixing pigments, and two paints that match perfectly under one light can drift apart under another. This effect is called metamerism. It’s why the paint shop’s colour match can look spot on under its lights and slightly off at home. It also means a colour can change character between morning daylight and evening LEDs. Cameras also respond to light a little differently from our eyes, so a camera can sometimes separate two colours your eye sees as a match, or the reverse.

Your screen might be lying too

Even a perfect photo can look wrong on screen.

• Phone display features like warm “night” modes and automatic ambient adjustment shift the colour of the whole screen. Turn them off before judging colour.
• Brightness matters. A dim screen makes colours look darker and muddier.
• Different screens disagree. Your laptop, phone and TV can all show the same file differently. If you edit photos regularly, a hardware calibration device for your monitor is a worthwhile investment.

Photographing paint swatches on walls

If you’re choosing paint and want to compare samples in photos (or send them to someone for a second opinion), this method works well:

1. Paint big patches. At least A4 size, ideally larger, with two coats. Tiny dabs are hard to judge in person and harder in a photo.
2. Paint them on more than one wall. Include a sunny wall and a shady one.
3. Include a neutral reference. Tape a plain white sheet of printer paper or a grey card next to the swatches. This gives you something to set white balance from later.
4. Fix your white balance. Use the daylight preset, or set a custom white balance off your white sheet. Don’t leave it on auto.
5. Shoot square-on with no glare. Step to the side if a window reflects in a satin or gloss finish.
6. Shoot at different times of day if you can. Morning, midday and evening tell you more than any single photo.
7. Shoot RAW if your camera or phone offers it.

Fixing colour after the fact

RAW files store the sensor data before white balance is baked in, which means you can change it later without losing quality. Free programs such as darktable and RawTherapee both have a white balance picker. Click it on your white sheet or grey card and the whole image corrects in one step.

With JPEGs you can still adjust colour, but it’s less forgiving. Big corrections can introduce banding and odd tints.

A light touch matters here too. Avoid cranking up saturation or vibrance on a paint photo. It might look punchier, but it no longer shows the real colour, which defeats the purpose.

The honest answer

No photo will ever be a perfect stand-in for seeing paint on your own wall in your own light. Use photos to narrow down the options and to share progress, then make the final call in person, at different times of day.

If the camera settings side is still new to you, our beginner’s exposure guide covers the basics, and you’ll find related posts under editing.