How to Make Long Web Pages Easier to Read with Color: Designing Color Schemes for Each Section

Changing the background color repeatedly on a long web page can help signal a new topic, but it can also interrupt the reading experience. The goal is not to give every heading a new color. It is to keep extended passages comfortable to read while making chapter transitions recognizable. This article uses a long beginner’s guide to balcony gardening to show how backgrounds, headings, and summary panels can work together as readers move down the page.

Keep the main reading colors consistent and mark meaningful transitions

A section is a part of a page that groups information on the same topic. On a long page, start by choosing a background and text color for ordinary reading, then reuse that combination across several chapters. Changing the body-text color whenever the user scrolls into a new section can create unnecessary visual adjustment. If the content has no reason to change its color scheme, keep the reading surface consistent.

A different background can make sense when the page moves from background explanations to step-by-step instructions, or when readers reach a short review at the end. However, do not make color the only signal of a chapter change. Headings such as “Preparation,” “Growing Steps,” and “Common Questions,” with generous spacing and optional chapter numbers, are more explicit. Repeating those labels in a contents list can also help readers find a chapter again.

Instead of alternating backgrounds by a fixed rule, distinguish areas for long-form reading, extended illustrated instructions, and a short checklist. Even if a chapter contains several subheadings, it does not need an additional background color while the topic remains continuous.

A five-chapter color scheme for a long balcony-gardening guide

Consider a page called “A Beginner’s Guide to Growing Herbs on a Balcony.” HEX is a web color notation with # followed by six hexadecimal digits. A contrast ratio measures the difference in relative brightness between adjacent colors, such as text and its background. The following palette follows the reader through five chapters.

• Chapter 1 — Introduction: use soft off-white ■#FBFCF8 for the main background and dark green-gray ■#27332E for body text, giving about 12.74:1 contrast. Set headings in deep green ■#234C3B, at about 9.40:1 against the same background. Reuse these body and heading colors in later chapters instead of assigning every chapter a new text color.
• Chapter 2 — Equipment: keep the off-white ■#FBFCF8 background. Separate descriptions of tools and accompanying photographs through spacing, not a different fill for every object. Chapter numbers and headings can show that the topic has changed even while the background stays the same.
• Chapter 3 — Growing Steps: use a pale sage ■#E9F2EB background for the longer block of instructions. Dark green-gray ■#27332E body text has about 11.48:1 contrast on it, while deep-green ■#234C3B headings have about 8.47:1. Continue the same background throughout the steps rather than creating alternating stripes for each stage.
• Chapter 4 — Common Questions: return to the original off-white ■#FBFCF8, using smaller headings for each question. Underlined text links can use deep green ■#146C55, which has about 6.17:1 contrast against the off-white. The underline makes the links recognizable without depending on color alone.
• Chapter 5 — Review Checklist: keep the chapter itself on off-white ■#FBFCF8 and place only the short checklist on a pale cream ■#FFF1DB panel. Dark green-gray ■#27332E text contrasts with the panel at about 11.79:1, and a dark-brown ■#70491D heading at about 7.09:1. For a “Save Checklist” button, use deep green ■#246449 with white ■#FFFFFF lettering, giving about 7.01:1 text contrast.

The main reading colors remain consistent across the guide. Only the extended instruction block and the brief final checklist get supporting surfaces. Returning to off-white for the questions helps mark a return to explanatory reading. Repeated heading treatments are just as important to this structure as the changes in background color.

Check subtle boundaries, links, and the mobile reading flow

The off-white page ■#FBFCF8 and sage instruction area ■#E9F2EB differ by just about 1.11:1, so background color alone makes a subtle boundary. Use a section heading and vertical spacing as well. If the instruction area contains an interactive checklist, a muted green-gray ■#577365 outline contrasts with the sage ■#E9F2EB at about 4.54:1 and can help show where the control begins. Evaluate essential interactive boundaries differently from purely decorative dividers.

If the final button sits on pale cream ■#FFF1DB, its deep-green ■#246449 fill contrasts with that surrounding panel at about 6.30:1. If the same link green ■#146C55 is also used on the sage ■#E9F2EB background, the text contrast becomes about 5.56:1. Always evaluate a reused color against the surface it actually touches.

Under WCAG 2.2 (Web Content Accessibility Guidelines) Level AA, normal-sized text generally needs at least 4.5:1 contrast with its background; qualifying large text needs 3:1. Non-text information necessary to identify a control, such as an essential border, may also need 3:1 against adjacent colors. Meeting the numeric targets alone does not guarantee an accessible page. On mobile, check that chapters do not become overwhelming blocks and that headings and summary panels remain easy to find.

HueRoll can suggest related colors, tints, and shades from HEX codes and compare a selected color against white or black. It cannot compare arbitrary color pairs or automatically assess AA or AAA conformance. All the other custom color-pair ratios in this article were calculated separately.