Web-Safe Color Chart
The 216-colour web-safe palette — every combination of 00, 33, 66, 99, CC and FF, with hex and RGB. Click to copy.
The classic 216-colour “web-safe” palette — every combination of the red, green and blue values 00, 33, 66, 99, CC and FF. It dates from 256-colour displays and no longer matters for compatibility, but it's still a handy evenly-spaced reference. Click any swatch to copy its hex.
What "web-safe" colors actually are
The 216 web-safe colors are every combination of the six red, green and blue values 00, 33, 66, 99, CC and FF — 6 × 6 × 6 = 216. The palette was defined in the 1990s so that images and web pages would display without dithering on systems limited to a 256-color display, where the operating system reserved the other 40 slots. On any modern screen, which shows millions of colors, "web-safe" no longer means anything for compatibility.
It survives as a reference for a different reason: the values are evenly spaced and easy to remember. A color like #3366CC or #00CC99 is quick to type, quick to eyeball, and lands on a predictable grid — handy for rough mockups, placeholder colors, teaching hex notation, or any time you want a small, well-distributed set to sketch with. Click any swatch above to copy its hex code.
Web-safe colors today
Use the grid as a starting point, then refine. Once you have a web-safe hex you like, open it in the color picker to nudge it off the grid, or in the palette generator to build a full scheme around it. Convert any value to RGB, HSL or CMYK with the color converter, and check contrast for text with the contrast checker. For named colors rather than a numeric grid, see the 140 CSS color names; for modern UI palettes, see the Tailwind and Material charts on the charts hub.