Web design principles for a website that works

Web design principles are the rules that decide whether a page works, whatever it looks like. A style is a matter of taste and brand. A principle holds for a playful bakery site and a formal law firm alike.

These website design basics come from how people read a screen. Visitors scan, they decide fast, and most of them hold a phone in one hand. A page that respects those habits wins the inquiry.

Below are eleven principles of good web design for a business website. Each one has a plain explanation, an example and a quick test you can run on your own site today.

The first screen is what a visitor sees before scrolling. It has one job: answer what you offer, for whom and what to do next. Visitors decide here whether to stay.

Clarity beats cleverness. A headline such as Kitchen renovation in Austin, designed and installed in six weeks does more than a slogan about dreams. Say the plain thing first and add character second.

1. ExampleA mobile men's hairdresser in our portfolio puts the rates high on the page, with a working calendar beside them. The visitor knows the service, the price and the next step at once.
2. Quick testShow your homepage to someone for five seconds and close it. Ask what you sell and what they could do next. Two right answers mean the first screen works.

Visual hierarchy is the order in which the eye meets things on a page. Size, weight, color and position steer that order. The most important element should be the largest or the boldest.

A page where everything is equally loud has zero hierarchy, and the visitor has to work to find the point. Decide per screen what is first, second and third, and design each one a step quieter.

1. ExampleA strong hero has one large headline, one smaller supporting line and one button in the accent color. Three levels, read in that order.
2. Quick testSquint at your page until the text blurs. The shapes that still stand out are your real hierarchy. Check that they are the headline and the main button.

Contrast is the difference in brightness between text and its background. Low contrast, such as pale gray on white, looks refined on a designer's monitor and disappears on a phone in daylight.

The WCAG guidelines of the W3C set the minimum at 4.5 to 1 for normal text and 3 to 1 for large text, which they define as 18 point or 14 point bold. Dark text on a light background passes with ease.

Readable type also means size and line length. Many designers use 16 pixels as the floor for body text on a phone, with lines of roughly 50 to 75 characters on a desktop.

1. ExampleText over a photo is the classic trap. A dark layer between the photo and the words keeps the headline readable on every part of the image.
2. Quick testEnter your text color and background color in a free contrast checker, such as the one from WebAIM. Aim for 4.5 to 1 or higher for body text.

White space is the empty room around and between elements. It can be any color. Its purpose is grouping: things that sit close together belong together, and room around a block gives it weight.

Use space to guide, and keep the page full of substance. A section with a clear heading, a short text and one image needs room around it. A screen that holds only one word wastes the visitor's scroll.

1. ExampleA price card with room around it and its button close to the price reads as one unit. The same card squeezed against its neighbors reads as a wall.
2. Quick testLook at one section and ask what belongs together. The distance inside a group should be clearly smaller than the distance between groups.

Consistency means that the same thing looks and behaves the same everywhere. One button style. One set of colors. Headings of the same size on every page. The menu in the same place.

Visitors learn your site in the first seconds. Every time something changes shape, they have to learn again, and each small doubt lowers trust. A consistent site feels professional before a word is read.

1. ExampleIf the main button is purple with rounded corners on the homepage, it is purple with rounded corners on the contact page too. A style guide records these choices once.
2. Quick testOpen three pages next to each other. Compare buttons, headings and link colors. Write down every difference and bring each one back to a single version.

Every screen should make one action the obvious one: book, call, request a quote or buy. Give it the accent color and the strongest position. Other actions can exist as quieter links.

More choices slow people down. Five equal buttons in a hero ask the visitor to do your thinking. One clear button and one modest alternative is a proven pair.

1. ExampleAn interior builder in our portfolio uses a price indicator that starts directly with the first question. The action and the first step are the same thing, so starting costs zero effort.
2. Quick testCount the buttons and links in your first screen that look equally important. If the count is above two, choose the one that earns you the most and tone the others down.

Proof is everything that shows others chose you and were happy: reviews, a star rating, client logos, numbers, photos of finished work. It answers the doubt that arises right before someone acts.

So place proof where the decision happens. Directly below the hero, beside the booking form and next to the price. A reviews page three clicks away helps few visitors.

1. ExampleA used car dealer in Eindhoven in our portfolio places its reviews directly below the hero, before any text about the company.
2. Quick testFind your main button on each key page. Check whether a review, rating or figure is visible on the same screen. Add one wherever the button stands alone.

Mobile first means you design the phone version first and expand it for larger screens. Google also indexes the mobile version of your pages, as its Search Central documentation on mobile-first indexing explains.

On a phone there is one column, one thumb and little patience. Buttons need room, text needs size and the main action should stay within reach. WCAG 2.2 sets a minimum target size of 24 by 24 CSS pixels.

1. ExampleA small horse boarding stable in our portfolio lets visitors call the owners directly from every page. On a phone, a call is one tap.
2. Quick testUse your own site with one thumb, standing up. Book or request a quote from start to finish. Every spot where you zoom, miss a button or give up is a fix.

Speed is a design decision. Every image, video, typeface and effect adds weight. Google measures the experience with three figures called the Core Web Vitals, described in its web.dev documentation.

The figures are measured on real visits, and a page counts as good when 75 percent of visits meet the target.

1. ExampleA hero video that loads after a still image keeps the first screen fast. The visitor sees the picture at once and the motion follows.
2. Quick testEnter your address in PageSpeed Insights, Google's free test, and read the mobile tab. It shows your three figures with a green, orange or red mark.

Accessibility means that people with reduced sight, hearing or motor control can use your site. The standard is WCAG, the Web Content Accessibility Guidelines of the W3C. Level AA is the level most often asked for.

Three points cover a large part of the work, and each of them also helps visitors with perfect sight on a bad connection or a bright day.

1. ContrastAt least 4.5 to 1 for normal text and 3 to 1 for large text. Buttons, icons and form borders need 3 to 1 against what surrounds them.
2. Alt textWCAG asks for a text alternative for every image that carries meaning. Alt text is a short description that screen readers read aloud.
3. Keyboard useAll functions have to work with a keyboard alone, and the element that has focus must be visibly marked.
4. ExampleA booking form where every field has a visible label, and where the Tab key moves through the fields in a logical order, works for mouse, thumb and keyboard.
5. Quick testPut your mouse aside. Press Tab to move through your homepage and Enter to activate. Check that you can always see where you are and reach the main button.

A form is where a visitor becomes a lead, so it deserves as much care as the hero. An honest form asks only what you need, says why and tells what happens after sending.

Each extra field is a reason to stop. Name, contact detail and the question are often enough for a first contact. Ask the rest in the conversation that follows.

Honest also means clear about consent and cost. State whether the request is free, when you will reply and what you do with the data. Leave marketing checkboxes empty by default.

1. ExampleA form with three labeled fields, the line We reply within one working day and an error message that names the field to correct.
2. Quick testFill in your own form on your phone and time it. Then leave one field empty and send. Check that the message tells you plainly what to fix.

The principles tell you how. The website design elements tell you what. Almost every effective business page is built from these seven parts, in roughly this order.

Check your own homepage against the table. A missing element is usually a missing answer. Add it before you change colors or typefaces, because content gaps cost more inquiries than looks.

These web design tips put the principles into practice. Each one takes an hour or less, and you can start with whichever is weakest on your site.

1. 1. Rewrite your headlineState what you do, for whom and where, in twelve words or fewer.
2. 2. Pick one accent colorReserve it for buttons and links, so everything in that color means you can tap it.
3. 3. Limit typefaces to twoOne for headings and one for body text. Fewer files also load faster.
4. 4. Use real photosYour own team and your own work. Visitors spot a stock photo quickly.
5. 5. Move reviews upPlace your three best reviews directly below the hero.
6. 6. Label the button with the resultGet my quote or Book a table says more than Submit.
7. 7. Compress your imagesLarge photos are the most common cause of a slow page. Export them in a modern format and at the size they are shown.
8. 8. Repeat the main buttonShow it in the header, after each major section and at the bottom.
9. 9. Write for scannersShort paragraphs, clear headings and lists. Most visitors read the headings first.
10. 10. Test with a strangerWatch one person use your site for five minutes and stay silent. You will see every obstacle.

Eleven principles can feel like a lot. Web design best practices come down to a fixed order of work, from the largest effect to the smallest.

Start with clarity and the main action. If visitors understand your offer and see the next step, the site already performs. Then add proof near that action.

Next comes the phone: mobile layout, speed and forms. These three decide whether an interested visitor completes the step or gives up halfway.

Finish with hierarchy, contrast, space, consistency and accessibility across all pages. This is the polish that makes the site feel trustworthy and keeps it usable for everyone.

Repeat the quick tests every few months. Sites drift as pages and photos are added, and a short check brings them back in line.

Reading about principles is one thing. Seeing them applied to your own offer, with your own photos and reviews, shows at once what they do.

Delta Six builds your complete custom website free first and shows it in a 15-minute online showcase. You only pay when you're happy. Choose us and your website is live within two weeks.

Online booking, an AI chatbot, a lead magnet for your trade, follow-up by email and WhatsApp, review follow-up and monthly SEO are included as standard.

• Run the five-second test on your homepage with someone who is new to your business.
• Rewrite the headline so it states what you do, for whom and where.
• Squint at each key page and confirm that the headline and main button stand out.
• Check body text for a contrast of at least 4.5 to 1.
• Set body text to 16 pixels or larger on a phone.
• Compare buttons, headings and link colors across three pages and make them identical.
• Reduce each screen to one main action in the accent color.
• Place a review, rating or figure on the same screen as every main button.
• Complete a booking or quote request on your phone with one thumb.
• Test the mobile version in PageSpeed Insights and read LCP, INP and CLS.
• Add alt text to every image that carries meaning.
• Move through the homepage with the Tab key and check for a visible focus mark.
• Remove every form field you can ask for later.
• State below each form when you reply and that the request is free.
• Check the homepage for the seven elements: header, hero, proof, services, process, FAQ and footer.