Ever landed on a website and something just felt off? You couldn't explain why, but you didn't trust it, so you left.
9 times out of 10, it was the colours. Colour is the first thing your brain processes when a page loads, before the words, before the logo, before the layout. You've already decided whether you trust the site based on colour alone, and it took about 50 milliseconds.
This isn't vibes. It's measured, repeatable, and it's costing a lot of small businesses customers every day. Here's what each colour actually does.
Blue, trust and stability
The safest colour in the world. It's why every bank, insurance company, hospital and tech giant uses it (Facebook, LinkedIn, PayPal, Visa, IBM, all blue). Blue tells people "we're not going to run off with your money". Perfect for professional services, finance, healthcare, tech.
Downside: it's everywhere. If you want to stand out you either use a very specific shade or pair it with something unexpected.
Red, urgency and appetite
Red does two things. It raises your heart rate (literally, it's been measured) and it makes you hungry. That's why every fast food chain on earth uses red. McDonald's, KFC, Pizza Hut, Burger King, Coca-Cola, all red.
It's also the colour of urgency. Sales, limited-time offers, "book now" buttons, red works. Use sparingly though. A full red website feels aggressive and stressful.
Green, money, nature, calm
Green has a split personality. Dark green = money, status, wealth (Rolex, Land Rover, high-end whisky brands). Light green = nature, health, organic (any wellness brand you can think of).
Green is the most "positive" colour in our heads, we associate it with "go", growth, and approval. Great for wellness, finance, eco-brands, and anything health-related.
Black, luxury and power
«If you want to look expensive, go black.»
Black is the shortcut to premium. Chanel, Prada, Tesla, Apple, all lean heavily on black. It's confident, serious, and makes anything next to it feel important. Works beautifully for luxury, fashion, high-end services.
Warning: black done badly just looks dark and depressing. It needs a lot of whitespace and one strong accent colour to breathe.
Yellow and orange, energy and friendliness
Yellow grabs attention faster than any other colour (that's why it's on taxis, warning signs, and school buses). Orange is the friendlier, warmer cousin. Both scream "approachable, fun, not taking ourselves too seriously".
Used by brands that want to feel young and energetic, Fanta, EasyJet, Amazon (the arrow). Avoid if you're trying to look serious or luxurious.
Purple, creativity and the unusual
Purple used to be the colour of royalty (because the dye was obscenely expensive). Now it signals creativity, imagination, a bit of magic. Rare enough that it still feels distinctive, think Cadbury, Twitch, Yahoo.
Great if you're in a creative field and want to stand out from a sea of blue.
How to pick yours
Don't pick the colour you personally like. Pick the one that matches what you want customers to feel. A lawyer using pink will lose cases. A children's toy brand using black will sell zero toys. Your favourite colour is irrelevant, your customer's emotional response is everything.
Look at your top three competitors. If they all use the same colour, you have two options, blend in (safe, harder to stand out) or go opposite (riskier, much more memorable). There's no wrong answer, but there is a strategic one based on your business.
Final word
Colour is half the work of a good website and most DIY builders get it wrong. If you want it done by someone who's going to ask the right questions before picking a single shade, see how we work or message us on WhatsApp.