Look at any brand or pick up any product from the shelf, and you’ll already have a good idea of what it is before you’ve read a single word. Is it playful or serious? Cheap or premium? Calming or urgent? These impressions form in a fraction of a second, which is exactly why colour choice is one of the highest-stakes decisions a brand makes.

Good branding and powerful marketing aren’t about picking a colour because it looks nice. Each colour carries associations that have built up over decades of marketing psychology research, culture, and even biology. Understanding what your colour choices are quietly saying can help you build a brand that feels intentional rather than accidental, which ties closely into the broader principles of brand identity design we work through with clients.

Through our years of experience as a creative agency, we’ve learned a think or two about colours and what they say to audiences on social media and beyond. In the infographic below, we breakdown each colour in a straight-to-the-point layout so you can use them with knowledge and skill.

The Primary Colours

Red is the colour of urgency. Research into colour and physiological arousal has shown it can raise heart rate slightly, which helps explain why it turns up so often in clearance sales, fast food branding, and anything designed to spark a quick decision. Brands like Coca-Cola and Netflix use it to grab attention and create a sense of excitement.

Blue works in almost the opposite direction. It’s widely considered the most universally liked colour across cultures, with few negative associations. That makes it a safe bet for brands built on trust, which is why banks, healthcare providers, and tech companies like PayPal and IBM lean on it so heavily.

Yellow sits somewhere in between. It’s the most visible colour in daylight, so it earns attention fast, but it can tire the eyes if overused. That’s why brands like McDonald’s and IKEA tend to use it as an accent against a stronger base colour, rather than covering everything in it.

The Secondary Colours

Orange borrows red’s energy without its intensity, which is part of why it’s such a common choice for call-to-action buttons. It says “act now” in a friendlier tone than red does. Amazon and Fanta both use it to feel approachable and upbeat.

Green is the easiest colour for the eye to process, and it carries a built-in association with growth and go signals. Depending on the context, it can read as fresh, sustainable, or financially healthy, which is why it works equally well for Whole Foods, Spotify, and Starbucks.

Purple has an unusual backstory. The dye used to be so rare and expensive that only royalty could afford it, and that history still shapes how we read the colour today. Brands like Cadbury and Hallmark use it to signal a sense of quality and imagination.

Putting It into Practice

None of this means you need to overhaul your branding overnight. Colour psychology works best as a lens for checking your existing choices against your brand’s personality. If you want your audience to feel a sense of trust and calm, a bright red call-to-action button might be sending the wrong signal, even if it gets clicks.

The most effective brands usually pair a primary colour that reflects their core identity with a secondary colour used sparingly for emphasis, particularly on buttons or offers. Think about what you want a customer to feel in the first two seconds of seeing your brand, then check whether your palette actually delivers that.

Building a winning social media strategy starts with knowing what your brand colours are communicating. If you’re planning a rebrand or just want a second opinion on whether your current colours match the message you’re trying to send, get in touch with the Giraffe Social team!

The Colour Psychology Infographic

Dive into the full infographic below, and be sure to save it to always have it to hand when needed!