How to Use Color to Show Importance on Web Pages: Color Schemes That Make Information Priorities Easy to Understand

When a web page contains several “important announcements,” people may struggle to tell which one needs their attention first. Adding red or orange everywhere can make every message look equally urgent. A better starting point is to sort the information by what the visitor needs to do: take action now, check something important, or consult a resource later. Here is a three-level approach for an online-course dashboard, with practical color choices for each priority.

Classify information by the need for action, not by color intensity

The highest-priority information requires action before a deadline, such as submitting an assignment. The next level is information learners should check, such as the date of a live class. The lowest level is reference material they can open when needed. These are categories of importance, not a claim that everyone’s eyes will move through the page in the same order.

Assign priority based on what would happen if the learner missed the message, rather than simply on what the organization wants to promote. Labels such as “Action Required,” “Please Check,” and “Reference” explain the difference even when colors are hard to distinguish. Once those labels exist, it is easier to give each type of information an appropriate amount of visual emphasis.

Apply three levels of emphasis to an online-course dashboard

Use very light gray ■#F8FAFC for the overall page background and dark gray ■#1F2937 for ordinary text. Their contrast ratio is about 14.03:1. HEX is a web color notation made of # followed by six digits using 0–9 and A–F. A contrast ratio measures the difference in relative brightness between adjacent colors, such as lettering and the surface underneath it.

• Highest priority — Action Required: place the assignment-deadline notice on a pale orange ■#FFF7ED panel, with a reddish-brown ■#9A3412 heading and dark gray ■#1F2937 explanation. Contrast with the panel is about 6.88:1 for the heading and 13.83:1 for the explanation. Add a deep-orange ■#C2410C line at the side, contrasting with the panel at about 4.88:1. A “Submit Assignment” button can use reddish brown ■#9A3412 with white ■#FFFFFF lettering, giving about 7.31:1.
• Medium priority — Please Check: place the next live-class information on a pale blue ■#EFF6FF panel. A deep-blue ■#1E40AF heading contrasts with the panel at about 8.01:1, while dark gray ■#1F2937 explanatory text reaches about 13.49:1. A blue ■#1D4ED8 side rule contrasts with its pale-blue ■#EFF6FF surface at about 6.16:1. State the time and joining instructions in words, without making this notice compete with the assignment submission button.
• Lower priority — Reference: place a list of revision resources on a light gray ■#F1F5F9 area. Use slate gray ■#475569 for the heading and dark gray ■#1F2937 for descriptions; their contrast ratios with the area are about 6.92:1 and 13.40:1. Add a “Reference Materials” label and ordinary underlined links rather than more large, brightly filled buttons.

In this example, the reasons for emphasis differ: an action has a deadline, a class schedule deserves attention, and extra reading can wait. Instead of styling everything as a warning, reserve the strongest border and filled button for the information that needs an action. When a deadline passes, update the message and its priority rather than leaving an outdated urgent notice on screen.

Keep priority understandable without color and verify contrast

Under WCAG 2.2 (Web Content Accessibility Guidelines) Level AA, normal-sized text generally requires a contrast ratio of at least 4.5:1 against its background, while qualifying large text requires at least 3:1. Essential visual information, such as a border used to identify an interactive control, can also require at least 3:1 against adjacent colors. The combinations above have been checked numerically, but these checks alone do not establish accessibility conformance for an entire page.

The reference area ■#F1F5F9 differs from the page background ■#F8FAFC by only about 1.05:1. That is too subtle to depend on as the sole boundary of an interactive component. Give links underlines, provide sufficient spacing, and add a clearer outline wherever a distinct clickable region is necessary. On small screens, check that labels remain visible when the notices stack vertically. When information changes priority, update its wording as well as its color.

HueRoll can help explore related colors, tints, and shades from a HEX value and compare a selected color with white or black. It cannot directly compare arbitrary color pairs or automatically report AA or AAA compliance. The other foreground-to-background ratios in this article were calculated separately. Treat the priority labels and contrast checks as complementary parts of the design process.