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Convert a Hex Color to LAB

Convert a color in hex #rrggbb format to LAB format. Runs entirely in your browser, so your data never leaves your device.

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Output

The result appears here as you type.

How to use Convert a Hex Color to LAB

  1. 1. Paste the hex color code. Enter a value such as #ffffff into the input pane. The converter reads the three channel pairs and needs nothing else from you.
  2. 2. Follow the color science. The sRGB channels are linearized, transformed to XYZ under the D65 illuminant, then mapped to CIELAB. L is perceptual lightness from 0 to 100, while a and b encode green-red and blue-yellow axes.
  3. 3. Copy the lab() triple. White comes out as lab(100, 0, 0); copy whatever your color produces and paste it into your color-difference script, CSS lab() value or research notes.

When to use Convert a Hex Color to LAB

Convert a Hex Color to LAB moves a color into the perceptually uniform CIELAB space, where numeric distance roughly matches how different two colors look to a human. Reach for it when hex arithmetic gives misleading answers about similarity, contrast or lightness.

  • Measuring perceptual color difference. To compute a delta E between a brand color and what a printer or display actually produced, both colors must be in LAB first. Convert the hex references here before running the formula.
  • Sorting a palette by real lightness. Ordering swatches by hex value or even HSL lightness produces jarring ramps. The L component from this conversion sorts colors the way an eye would, from dark to light.
  • Adopting CSS lab() colors. Modern CSS supports lab() notation for wider gamuts and better interpolation. Convert your existing hex tokens to see their LAB coordinates before migrating gradients to the new syntax.
  • Preparing data for a color study. A UX experiment on color perception needs stimuli described in a device-independent space. Convert every hex stimulus to LAB so the paper reports coordinates reviewers can reproduce.

Examples

White

Input

#ffffff

Output

lab(100, 0, 0)

Red

Input

#ff0000

Output

lab(53.24, 80.09, 67.2)

About the Convert a Hex Color to LAB tool

Convert a Hex Color to LAB does its work locally, right in the browser. Convert a color in hex #rrggbb format to LAB format. There is no upload step, no queue and no account, and your data never travels over the network.

It belongs to the Hex Tools collection on EditSafely, a set of 108 small, focused Hex utilities that share the same instant, private workspace.

There is nothing to configure. Provide the input and the result appears on its own. 2 worked examples further down the page show exactly what the tool produces for real inputs.

Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.

Frequently asked questions

Does Convert a Hex Color to LAB cost anything?

Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.

Is it safe to paste sensitive or confidential data?

No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.

How much text can I process at once?

There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.

Do I need to sign up or install anything?

Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.

How do I use the result?

The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.