Colour psychology in marketing: the promise and the problem
Colour psychology in marketing is the idea that the colours you choose shape how customers feel about your brand and what they do next. Blog posts and infographics turn it into tidy rules: blue means trust, red means urgency, green means growth. The rules are easy to remember, which is part of why they spread. The research behind them is thinner and more conditional than the charts suggest.
You have probably also seen precise-sounding figures about how fast shoppers judge a product by its colour, or what share of a buying decision colour explains. Those numbers circulate widely but do not trace back to a reliable study, so leave them out of your planning and your pitch decks. What the research does support is useful, just less dramatic.
What the research supports
A review by Elliot and Maier in the Annual Review of Psychology is a good starting point. It concludes that colour can affect how people feel and act, but that the field is still young and the effects depend on context. In practice, a shade that feels calming on a spa's website might feel dull on a gym's, so meaning comes from the situation as much as from the colour itself.
Labrecque and Milne looked at colour and brand personality. They found that colours carry associations, for example blue with competence, and that those associations vary by context. That gives a small business a better question to ask. Instead of wondering which colour sells, decide which personality you want customers to sense, then check whether your palette supports it in your sector.
Contrast decides what gets seen and read
The red-versus-green button debate misses the point. A call to action gets noticed because it differs from what surrounds it, and that difference is contrast, not hue. A mid-green button on a mid-blue band can be harder to spot than a dark navy one on white. Someone else's test showing one colour beating another tells you very little about your own page.
Contrast also decides whether people can read your words at all. Pale grey copy on white, or white text laid over a busy photo, is hard going on a phone outdoors. Free contrast checkers compare two colours against the WCAG accessibility guidelines and give a clear pass or fail, which is a far more useful test than any chart of colour meanings.
Choosing brand colours without the myths
Start with the personality you want people to sense, in three or four words, and the customers you serve. A family dentist and a late-night bar may both want to feel welcoming, yet they mean different things by it. Choose a main colour, a neutral base and one accent kept for actions. Then look at your sector: copying every competitor makes you blend in, while a deliberate difference helps people tell you apart.
Colour does not stop at the logo. Photos, video, signage, social posts and ads should share one palette and similar colour grading, so a customer who has seen you in three places recognizes you in the fourth. Mixed filters, clashing stock images and a slightly different green on every printed item can undo that recognition, however carefully the original colours were chosen.
Where colour advice backfires, and what to try
Colour advice goes wrong when it replaces testing and judgement. Repainting every button red because a blog said red converts can make warnings, errors and sale tags look the same. Copying a well-known competitor's palette to borrow their reputation can confuse people about who is who. Status colours such as red and green also need a word or an icon beside them, because not everyone can distinguish the two.
Measure what changes. If you move to a new palette, compare enquiries and bookings over similar periods, and where possible alter a single element per round. The conversion rate calculator turns your visitor and enquiry counts into rates you can compare, and our marketing psychology hub explains the other effects worth testing on your website, ads and emails.
- Run your main text and button colour pairs through a free contrast checker
- View your homepage in greyscale and confirm the main button still stands out
- Keep one accent colour for buttons and links only
- Write three words for your brand personality and judge each colour against them
- Match photo and video colour grading across your site, ads and social posts
- Add text or an icon wherever colour is currently the only signal
Colour on a more personal, more accessible web
Dark mode, system colour settings and accessibility tools already change how some people see your site, so a palette has to work in more than one version. As AI tools generate images and layouts on demand, keeping colours consistent across everything you publish will take written rules rather than good intentions. A short colour guide with exact values and their uses is fast becoming basic housekeeping.
- 01Palettes will need tested light and dark versions
- 02Colour guides will need to cover AI-generated images and video
- 03Contrast checks are likely to become a routine step before every launch
Questions & answers
Partly. Elliot and Maier's review found colour can influence feelings and behaviour, yet the effects are context-dependent and the research is still developing. Colour clearly shapes brand associations and whether things get noticed. Fixed rules such as 'red increases sales' are not supported, so test any change on your own audience before rolling it out.
One that contrasts clearly with its background and with the rest of the page, and that you use for actions only. Whether it is orange, blue or green matters much less than whether it stands apart. Check it in greyscale: if the button fades into the page, the contrast is too low.
Labrecque and Milne did find blue linked with competence, but brand personality associations like that one vary with context. Do not rely on a hue to build trust. Clear information, genuine reviews and a consistent experience are things customers can check for themselves; for the reviews part, see the post on getting more Google reviews.
Only with a clear reason, such as poor contrast, a palette that clashes with your audience or looking too much like a competitor. Recognition builds through consistency, so frequent changes cost you. If you do change, update every touchpoint at once and keep a short guide with the exact colour values.
