A call-to-action, commonly shortened to CTA, helps a website visitor take the next step. It might invite them to buy a product, request a quotation, arrange an appointment, download a guide or view more information.
The button itself may be small, but its effectiveness depends on much more than its colour. The surrounding content, wording, visual prominence, placement and action that follows all influence whether somebody feels ready to click.
There is no single button design that will work best on every website. A bright red CTA is not automatically more persuasive than a blue or green one. The right approach depends on the business, page, audience and decision being made.
Jump To:
- Use Clear CTA Wording
- Choose Colour And Contrast Carefully
- Consider Button Size And Shape
- Place CTAs At The Right Moment
- Reduce Uncertainty And Friction
- Make CTA Buttons Accessible
- Avoid Too Many Competing CTAs
- Test CTA Buttons Properly
- Improve Your Website’s CTAs
Use Clear CTA Wording
A visitor should understand what will happen before selecting a CTA. Generic labels such as “Click Here”, “Submit” and “Learn More” provide very little information when viewed on their own.
More specific wording might include:
- Request A Website Quote
- View Our Web Design Packages
- Book An Initial Consultation
- Download The Free Guide
- Add To Basket
- Check Available Dates
The strongest wording will depend on the action. A person researching an expensive or complicated service may not be ready to “Buy Now”, but they might be comfortable viewing prices, asking a question or arranging an introductory conversation.
Wording should also be honest. Urgency can be appropriate when an offer or deadline is genuine, but artificial countdowns and misleading scarcity can undermine trust. If there is no real deadline, avoid pretending that the visitor needs to act immediately.
Choose Colour And Contrast Carefully
Colour can help a CTA stand out, but there is no universal colour that produces the most conversions. Claims that red always creates urgency or green always builds trust simplify a much more complicated decision.
The important question is whether the CTA is noticeable within the page. A blue button may disappear on a predominantly blue website, while the same button could stand out clearly against a white or cream background.
Choose a colour that:
- Contrasts clearly with the surrounding background
- Fits the website’s wider visual identity
- Distinguishes the primary action from secondary options
- Keeps the button text easy to read
- Works for people with different forms of colour vision
Do not rely on colour alone to explain meaning. For example, a destructive action should use clear wording such as “Delete Account” rather than depending on a red background to communicate the warning.
Consider Button Size And Shape
A CTA needs to look interactive and be large enough to select comfortably. If it is too small or positioned close to other links, mobile users may struggle to tap it accurately.
WCAG 2.2 includes a minimum target size of 24 by 24 CSS pixels in many circumstances, although exceptions apply. In practice, a primary CTA will usually benefit from a larger clickable area, comfortable padding and enough space around neighbouring elements.
Rounded corners can feel friendly and fit many modern designs, but they do not automatically improve conversions. Square, rounded and pill-shaped buttons can all work when used consistently with the rest of the website.
The shape should make the element recognisable as something that can be selected. A button that looks like ordinary text may be missed, while an oversized button can dominate the page and distract from the information needed to make a decision.
Place CTAs At The Right Moment
Positioning a CTA near the top of a page can be useful for visitors who already understand the service and are ready to act. However, this does not mean every effective CTA must appear above the fold.
Some decisions require more explanation. Before requesting a quotation or committing to an expensive service, a visitor may want to understand:
- What is included
- Who the service is suitable for
- How the process works
- What experience the provider has
- What previous customers say
- What happens after making contact
On a longer page, it can make sense to repeat the primary CTA after important sections. One might appear near the introduction, another after the service benefits and a final option near the end.
A sticky CTA can remain accessible while somebody scrolls, particularly on mobile. It should not cover important content, interfere with navigation or make the page difficult to use. Large pop-ups and overlays should also be used carefully, as they can obstruct the content somebody originally visited the page to read.
Reduce Uncertainty And Friction
A CTA is more convincing when the surrounding content answers the visitor’s immediate concerns. The button should feel like a logical next step rather than an interruption.
Short supporting text can explain what happens after the click. For example:
- No obligation and no hard sell
- We normally reply within one working day
- View prices before choosing a package
- No payment details required
- Choose a suitable date on the next screen
Only include statements that are accurate for the business. A promise that is not kept will damage trust more than a carefully worded CTA can build it.
The destination also needs to match the wording. If a button says “View Prices”, it should lead directly to useful pricing information rather than a general contact form. Unexpected destinations can leave visitors feeling misled.
Once somebody selects the CTA, keep the next stage as straightforward as possible. Avoid asking for information that is not needed and explain why any less obvious details are required.
Make CTA Buttons Accessible
An effective CTA should work for as many visitors as possible. Accessibility therefore needs to be considered alongside appearance and conversion goals.
Check that each CTA:
- Can be reached and activated using a keyboard
- Has a visible focus state
- Uses readable text with sufficient contrast
- Remains clear when the page is zoomed
- Has enough space around it on smaller screens
- Uses descriptive wording rather than relying on its position
- Does not depend entirely on colour or an icon
The underlying HTML should also match the function. A link is normally appropriate when the CTA takes somebody to another page or location. A button should generally be used when it performs an action, such as submitting a form or opening an interactive control.
Avoid Too Many Competing CTAs
If every button is given the same size, colour and prominence, visitors may struggle to decide what to do. A clear visual hierarchy helps identify the main action while keeping alternative routes available.
For example, a service page might use “Request A Quote” as its primary CTA and “View Recent Projects” as a secondary link. Both are useful, but they do not need equal visual weight.
The primary CTA should reflect the main purpose of the page. Removing unnecessary choices can make the journey clearer without pressuring the visitor.
Reviewing examples from relevant website projects can help illustrate how calls to action fit within different layouts and customer journeys.
Test CTA Buttons Properly
Design guidance provides a sensible starting point, but real visitor behaviour is the most useful way to understand whether a CTA is working.
A/B testing compares two versions of an element. Half of the eligible visitors might see one CTA while the remainder see another. Their behaviour can then be compared against a defined goal.
Useful CTA tests might compare:
- Two clear button labels
- Different placements within the same page
- A short form against a longer form
- A button with or without supporting reassurance
- Two contrasting colours that both meet accessibility requirements
Change one meaningful element at a time so the result can be interpreted. If the colour, wording, position and surrounding content all change together, it will be difficult to understand what influenced the outcome.
Do not stop a test as soon as one version moves ahead. Allow enough traffic and time to gather meaningful information, accounting for weekday, weekend and seasonal differences where relevant.
Clicks are not always the final measure of success. A button may attract more attention while producing fewer completed enquiries or lower-quality leads. Measure the action that matters to the business, whether that is a purchase, booking, telephone call or suitable enquiry.
Improve Your Website’s CTAs
A good call-to-action combines clear wording, visual prominence and sensible placement with a page that gives visitors enough information to make a decision. Its purpose is to make the next step easier, not to pressure somebody into acting before they are ready.
CTA performance should be considered as part of the complete website design. The surrounding content, navigation, forms and mobile experience all affect whether a visitor completes the journey.
If your website is attracting visitors but not producing enough enquiries, contact Athena Media to discuss the pages, calls to action and user journeys that may need improving.
