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Explore the complete list of 216 Web safe colors. Easily look up color names, HEX codes, and RGB values for consistent cross-platform web design.
Web Safe Colors are a standardized palette designed for consistent display across early browsers and monitors with limited color depth (256 colors). They were crucial for reliable cross-platform web design.
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
The traditional web-safe palette contains 216 colors: six allowed values for each red, green, and blue channel, giving 6 × 6 × 6 combinations. Each channel uses hexadecimal 00, 33, 66, 99, CC, or FF, equivalent to decimal 0, 51, 102, 153, 204, or 255. For example, #3366CC corresponds to rgb(51, 102, 204). This is a historical palette associated with early 256-color display constraints, not a modern requirement for building websites.
The chart displays the 216 swatches and lets you search by a substring in a HEX value or its decimal RGB text. You can switch the visible value between HEX and RGB, select a swatch to copy that representation, and share the current search and display selection. The search is a code lookup, not a natural-language color-name search.
HEX and rgb() are standard ways to express RGB colors in CSS. The CSS Color specification defines them independently of the old six-level subset, so contemporary CSS can express many colors outside this palette.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Select HEX for a value such as #3366CC, or RGB for a value such as rgb(51, 102, 204).
Enter part of a HEX string or decimal RGB text in the search field. The match count updates as the filter changes. Clear the field to show all 216 colors.
Select the color tile. It copies the currently selected representation to the clipboard, so switch format before copying if you need the other notation.
Use cases
See how the tool fits into real work and everyday tasks.
A designer maintaining an older interface can quickly retrieve one of the historic six-level color values without manually converting the channels.
An instructor can compare #003399 with rgb(0, 51, 153) to show how the same three channel values appear in hexadecimal and decimal notation.
Q&A
Find concise answers to common questions and confusing cases.
No. The 216-color set is a historical palette. CSS accepts a much broader range of RGB values.
No. Contrast depends on a foreground and background pair, text size, and other presentation details. Test the actual pair against the accessibility criteria that apply to your project.
The filter searches HEX and RGB strings, not named colors. Try part of a hexadecimal code or one of its decimal channel values.
Notes
Review scope, result limitations, and important precautions before use.
“Web safe” describes a legacy palette concept; it does not promise identical appearance across today’s displays, browsers, color profiles, brightness settings, or viewing conditions. It also says nothing about readability, accessibility, branding, print reproduction, or whether a color suits a particular design.
Use the swatches as a compact reference set. For a production interface, evaluate colors on representative devices and test each actual text/background combination. The chart does not calculate contrast ratios or certify a design.
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