How to Pick a Paint Colour That Actually Looks Right on Your Wall
Here are five practical steps to take before you commit to painting an entire room.
By The Sandtex Team · · 1 min read
There is a special kind of disappointment that comes with buying the exact paint colour you wanted, only to discover that it looks nothing like what you imagined. You picked it yourself, checked the colour chart twice, and even showed the painter an inspiration picture of the living room you wanted to recreate.
Now that the paint is on your wall - that beautiful cream colour you fell in love with is looking suspiciously like custard. The painter insists it is the exact shade you bought, and the annoying thing is, he might be right.
Do you know that colours have a habit of changing their appearance depending on where they are applied?
Think about it. Have you ever bought clothes that looked one way inside a boutique but slightly different once you stepped out into the sunlight? Paint behaves exactly like that.
A room with large windows and plenty of daylight will display colours differently from a room that depends on artificial lighting. The direction of your window also play a huge role. A colour that looks soft and warm in one room might appear dull or pale in another.
This is why choosing paint directly from a tiny colour chart is always a gamble.
Fortunately, you do not have to leave your home decor to chance. Here are five practical steps to take before you commit to painting an entire room.
Start With the Room, Not the Colour Chart
Before falling in love with a particular shade, take a good look at the space you are painting. Does natural sunlight enter easily? Is the room usually bright or a little dark? Most importantly, do you spend more time there during the day or at night?
A room that receives plenty of natural light gives you more flexibility with colour. However, if your room does not get much sunlight, certain darker shades may make it feel incredibly boxed in.
In those cases, you might want to consider lighter shades to brighten the space, or warmer undertones to make it feel more welcoming.
Here is a useful trick: Pay close attention to when you use the room.
If you are painting a sitting room where the family spends most evenings watching television, the way the colour looks with artificial lighting matters just as much as how it looks with the sunlight. After all, what is the point of choosing a colour that looks beautiful at noon if it disappoints you every evening?
Learn to Spot the "Hidden" Undertones
Have you ever noticed that some whites look slightly yellow while others appear almost blue? Or that two shades of grey can look completely different when placed side by side? That happens because colours have subtle underlying tones.
A cream might lean towards yellow, pink, or even a slightly greyish shade, and these small differences become highly noticeable depending on your lighting.
The easiest way to spot these hidden undertones is through direct comparison:
• Compare similar shades: Instead of looking at just one cream swatch, place three or four cream samples side by side. You will instantly notice which one looks more yellow, which one looks warmer, and which one feels truly neutral.
• Assess existing elements: Look at the permanent fixtures already in your room. Your floor tiles, curtains, furniture, and even the ceiling will influence how your wall colour appears.
That lovely grey you picked might look beautiful on its own, but it will feel completely out of place beside warm brown floor tiles. Take your colour samples home and compare them with what you already own. You are not just choosing a beautiful colour; you are choosing a colour that needs to live in harmony with everything else in the room.
Don't Ignore the Finish (Paint Sheen Changes Everything)
Let’s say you have finally found your perfect shade. You know the exact colour name, you have the code, and you are ready to buy. Not quite. There is still one critical decision to make: the finish.
Paint finishes alternate how light bounces off the wall:
• Matt paint: Gives walls a softer, velvety appearance because it reflects very little light directly towards your eyes. It is also excellent at hiding small bumps or imperfections on the surface of your walls.
• Satin and Eggshell: Have a gentle, low-key sheen that offers a bit more durability and washability.
• Gloss and Semi-Gloss: Are highly shiny, reflective, and incredibly durable, but they will highlight every single flaw on your wall.
A colour in a shiny finish can look completely different from the exact same colour code in a matt finish, particularly when light hits the wall at sharp angles. Before buying a full bucket, ask to see the colour in the actual finish you intend to use. Never test a matt sample and assume it will look identical when you buy it in a satin or gloss.
Give the Colour a Proper Audition
This is the absolute simplest way to avoid a disappointing and expensive paint job. Before you commit your budget to the entire project, test the paint directly on your wall. Do not make the test patch so tiny that you have to squint to see it.
How to run a proper paint test:
1. Go big: Paint a generous section, ideally around 60 cm by 60 cm, so you can see how the colour behaves across a larger surface area.
2. Location matters: If possible, test it on two different walls—one that receives plenty of direct light and another that sits mostly in the shade.
3. Layer properly: Apply the recommended number of coats (usually two), allowing each coat to dry fully as instructed before judging the result.
Once the paint is dry, look at the colour in the morning. Check it again in the afternoon. Then, switch on your room lights in the evening and take a final look.
You might discover that the shade you loved at 9:00 AM feels completely cold and uninviting at night.
If you don't want to paint directly onto your walls yet, try painting a large piece of cardboard.
Remember That Your Phone Screen Is Lying to You
That beautiful room you saved from Instagram or Pinterest? It will almost certainly look different in real life. Phone and computer screens display colours using digital light filters, meaning images are heavily affected by screen brightness, camera settings, and professional editing.
While online inspiration pictures are incredibly useful for establishing a general mood, they should never be your final reference point. Use them to show your painter or paint supplier the kind of look you are trying to achieve but always rely on physical paint samples under the unique lighting of your own home to make the final call.
The goal isn't to perfectly reproduce someone else’s viral living room, it is to create something that looks stunning in yours.
Before You Buy That Full Bucket of Paint...
Taking an extra day or two to compare your options, check your lighting, and test a generous patch might feel like unnecessary homework.
But consider what it saves you: the high cost of buying extra paint, paying a painter to redo the work, and explaining to your family why your sophisticated sitting room looks like a bright yellow school bus.
A colour can be beautiful on a chart and still be completely wrong for your home. The trick to successful Interior design is knowing the difference before you have painted all four walls.