Colour use

Colour usage refers to the deliberate choice and application of colours in visual communication, such as websites, brand identities, marketing and interfaces. It encompasses both the selection of primary and secondary colours and their combination, contrast and proportion. Effective use of colour strengthens brand recognition, influences emotion and behaviour, and enhances the user experience. For small and medium-sized companies, it determines whether visitors gain trust, notice a call-to-action, or, conversely, are put off by visual clutter.

How colour works in visual communication

The use of colour operates on three levels: psychological, functional and cultural. Psychologically, every colour evokes associations, such as blue for reliability or red for urgency. Functionally, colours provide hierarchy and readability, for example through contrast between text and background or through accent colours on buttons. Culturally, meanings vary by region; in the United Kingdom, for example, this is evident in the preference for neutral tones in B2B communication. An effective colour scheme combines these three layers and translates brand values into visual codes that the target audience recognises and understands. In practice, we often see companies starting with a primary colour from their logo and building a complementary palette around it.

Why the use of colour emerged and why it matters now

The use of colour as a design principle originated in the worlds of graphic design and advertising, where colour was employed from an early stage to attract attention and reinforce messages. With the rise of digital media and accessibility guidelines such as the W3C’s WCAG standards, the use of colour also became a matter of user-friendliness and inclusion. Nowadays, colour matters not only for aesthetics, but also for conversion, accessibility and consistency across channels. An online shop that uses colour strategically sees higher click-through rates on calls-to-action and less confusion in navigation.

What the use of colour delivers for small and medium-sized companies

For small and medium-sized companies, a well-considered use of colour delivers immediately measurable benefits: higher brand recognition, better conversion rates and stronger positioning. A consistent colour palette reinforces your visual identity and makes you recognisable in email campaigns, on social media and on your website. Good contrast and accessible colour choices lower the barrier for visitors with visual impairments or colour blindness, which broadens your reach. At Monkey Vision , we integrate colour into every corporate identity and web design project, ensuring that colour is not only aesthetically pleasing but also works towards your business objectives. Furthermore, a clear colour scheme helps your team to communicate consistently, from quotes to newsletters.

In practice, the use of colour recurs in many areas: from your logo and website to your presentations and packaging. Each application requires a different balance between recognisability, functionality and emotion. Below are four specific situations in which the use of colour makes a difference for small and medium-sized companies.

Use of colour in web design and user interfaces

On a website, colour draws attention and determines the hierarchy. Accent colours on buttons such as ‘Order now’ or ‘Contact us’ increase the click-through rate, provided they contrast sufficiently with the background. Neutral colours for text and backgrounds ensure a sense of calm and readability, whilst the brand colour in the header and footer enhances brand recognition. In practice, we often see with SME clients that an overly busy colour palette leads to confusion: visitors do not know where to click. A clear user interface design uses a maximum of three to four main colours and applies them consistently. Accessibility is essential here: a contrast ratio of at least 4.5:1 between text and background complies with WCAG guidelines and makes your site usable for everyone.

Use of colour in branding and brand identity

In your brand identity, colour forms the basis of brand recognition. A consistent colour palette across business cards, your website, email signatures and social media ensures that customers recognise you within a second. Many SMEs choose a single primary brand colour that expresses their core value, such as green for sustainability or dark blue for professionalism. Around this, you build a palette of secondary and neutral colours to allow for flexibility. At Monkey Vision , we always document colour codes in a brand guideline, so that suppliers and partners use exactly the same shades. A common mistake is choosing too many colours, which makes your brand look cluttered and unprofessional. Limit yourself to a maximum of five colours in your entire palette.

The use of colour in e-commerce and conversion optimisation

In online shops, colour has a direct influence on purchasing behaviour. Red or orange on an ‘Add to basket’ button creates a sense of urgency, whilst green conveys trust and security on payment buttons. Colour-coding product variants, such as size or colour, also lowers the barrier to making a choice. An online shop with 500 products that uses colour strategically in filters, labels and calls to action sees, on average, a higher conversion rate than a shop with only black-and-white buttons. Please note: colour should never be the sole indicator, as colour-blind visitors will miss that information. Always combine colour with text, icons or patterns. In online shop projects, we often test colour choices using A/B testing to see which combination yields the highest conversion rate.

When colour use is the right choice and when it is not

The use of colour is always relevant, but the complexity varies. For a local service provider with a simple website, a basic palette of two colours plus black and white is sufficient. For a brand with multiple product lines or target audiences, a more extensive colour system may be required, with distinct accents for each line. Colour is less suitable as the sole distinguishing factor: if you rely solely on colour without strong positioning or a visual identity, you will remain interchangeable. Nor is colour the solution to unclear messages or poor information architecture. A cluttered website won’t be improved by a beautiful colour palette. Therefore, always start with strategy and structure, and let colour reinforce those choices.