How to Design a Website So Its Colors Are Easy to Change Later

After a website launches, its logo or brand colors may need to change. If every button, text label, and form is recolored at once, that change can undermine readability or make important interface states harder to recognize. A website that is easy to recolor later is designed from the start with a distinction between what can change and what should stay consistent. This article explains that approach with a home pickup booking website for a laundry-cleaning service.

Separate the colors that should change from those that should remain stable

First, classify colors by purpose: brand identifiers, primary actions, backgrounds and text, and status messages. Brand identifiers include accents around the logo and headings. Primary actions include booking buttons and links. Background and text colors support reading, while status colors explain conditions such as an input error. Even when two roles use the same color today, they do not necessarily have to change together.

For example, a brand update might include changing the booking button. Before doing so, however, make sure the new button background still contrasts sufficiently with its label. Input-error colors and standard body text can remain independent of the brand update. Rather than tying each component directly to a particular color code, decide which color role it should use.

CSS (Cascading Style Sheets, the language used to define how web pages look) custom properties can help reuse shared colors, but centralizing values does not by itself define the scope of a redesign. You also need a clear rule for which role every booking button, link, and error message uses.

Example: updating a laundry pickup booking site from teal to purple

Imagine a pickup booking website whose current brand accents are teal. The brand identifier and booking controls will change to purple, while body text, surfaces, borders, and input-error messages stay the same. HEX is a hexadecimal format for specifying web colors. The table shows the planned colors before and after the update.

The original teal ■#176A70 with a white ■#FFFFFF button label has a contrast ratio of approximately 6.30:1. Replacing teal with purple ■#59407B while keeping white ■#FFFFFF text gives approximately 8.59:1. In this example, the same purple also works as an underlined link on a white booking card ■#FFFFFF. Keep the underline, so that the link does not depend on color alone to be recognized.

Main body text ■#263648 on a white ■#FFFFFF card has a contrast ratio of approximately 12.33:1; supporting text ■#526273 on white has approximately 6.26:1. These colors help people check pickup conditions and booking details, so there is no need to change them simply because the brand hue has changed.

The light page background ■#F6F8FA and the white ■#FFFFFF card contrast by only about 1.06:1. Where an identifiable edge is needed, use a border ■#73879C; it contrasts with white by approximately 3.70:1 and with the light page background by 3.48:1. For input errors, keep pale red ■#FDEDED behind dark red ■#A12634, a text contrast ratio of approximately 6.51:1, and explain the actual error in words. These error colors do not need to follow the new brand palette.

After a color change, review both meaning and neighboring colors

To make future changes predictable, record which components will follow the brand color and which ones must remain independent. Then review representative screens such as the booking list, booking form, and confirmation page. Mobile layouts may reveal a fixed button or navigation element that is not visible on desktop, so check the updated design at different screen widths.

Links placed on white and filled buttons carrying white text use the accent in different ways. Check the actual adjacent colors in each case, including hover (when a pointer rests over a control) and focus (when a control is selected for keyboard interaction) states. Retain underlines, labels, and outlines where necessary; state and navigation meaning should not depend on hue alone.

Under WCAG (Web Content Accessibility Guidelines) 2.2 Level AA, ordinary text needs a contrast ratio of at least 4.5:1 against its background, while qualifying large text needs at least 3:1. Essential non-text information, such as some control outlines, may need at least 3:1 against adjacent colors. The ratios in this example are calculations for opaque, solid-color pairs; they do not establish that the entire page conforms to WCAG.

HueRoll can help you enter HEX codes, explore lighter and darker color suggestions, and check a selected color against white or black. It does not directly compare any two arbitrary colors or automatically determine AA or AAA conformance. Before and after the redesign, use another method to check the actual text, surface, and border combinations.