Why colour harmony matters for brands
Colour is the fastest, most primal signal a brand can send. Within 90 seconds of first seeing a brand, customers form a subconscious judgement based largely on colour. A coherent palette — built on a single brand hue with mathematically-related accents — signals professionalism, thoughtfulness, and attention to detail. A clashing palette does the opposite, regardless of how good the logo or copy is.
How to choose the right harmony for your brand
- Complementary: Best for high-energy brands, sports, entertainment, and strong CTAs.
- Analogous: Ideal for wellness, lifestyle, and professional services that prioritise trust and calm.
- Triadic: Great for creative agencies, children's brands, and vibrant consumer products.
- Tetradic: Useful for complex design systems with many states — dashboards, admin UIs, editorial.
- Monochromatic: Best for luxury, minimal, and editorial brands where the product should lead.
Designing an accessible palette
Once you pick a harmony, test every foreground-background pair against WCAG minimums. Aim for 4.5:1 for body text and 3:1 for large text as an absolute floor; 7:1 is ideal. If your brand hue fails on both white and black text, introduce a darker shade for text use and reserve the brand hue for buttons, borders, and decorative elements. A beautiful brand that nobody can read is a failed brand.