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For companies

HEX to XYZ

Convert HEX to CIE XYZ, free and online. Enter a HEX code and get the X, Y and Z tristimulus values on the 0 to 100 scale with the D65 white point, plus color(xyz-d65) and color(xyz-d50) for CSS. Handy for color science, Lab math and checking luminance.

How to convert HEX to XYZ

  1. 1Type or paste a HEX code into "Color"
  2. 2Read X, Y and Z in the big line, from 0 to 100
  3. 3Copy them, or copy the CSS color() form from the list
  4. X, Y and Z of your color, such as 61.619, 61.725, 9.646

What you get

  • Three ways to write it.0 to 100 as tables print it, and color(xyz-d65) and color(xyz-d50) on the 0 to 1 scale
  • Both white points.D65 for screens, and D50, the white that Lab and print profiles use
  • Nothing is sent anywhere.The matrix math runs in your browser

What you can do

  • Turn a HEX code into XYZ, for example #FFC61A into 61.619, 61.725, 9.646
  • Copy the same color as color(xyz-d65 0.61619 0.61725 0.09646), the way CSS writes XYZ
  • Get the D50 values as well, adapted from D65, in the line "XYZ (D50)"
  • Read Y as the relative luminance of the color: 100 is white, 0 is black
  • Paste rgb(), hsl(), lab() or a CSS color name instead of HEX, and see Lab, LCH and OKLCH in the same list

Good to know

  • The sRGB values are first made linear, then turned into XYZ with the standard sRGB matrix. White #FFFFFF gives 95.047, 100, 108.883
  • The big line has three decimals, the CSS lines five. HEX has only 256 steps per channel, so more decimals add no precision
  • This page always starts from D65, the white point of sRGB. For D50 take the line "XYZ (D50)" from the list
  • To go the other way, with your own scale and white point, use XYZ to HEX

Questions

What are XYZ values?

CIE 1931 XYZ describes a color by three tristimulus values based on how the eye responds to light. Y is the luminance. Other spaces such as Lab and OKLab are calculated from it.

Should I use the 0 to 100 or the 0 to 1 scale?

Both mean the same. Color tables and textbooks usually print 0 to 100, with white at Y = 100. CSS color(xyz) uses 0 to 1. This page gives you both.

What is the difference between D65 and D50?

They are two reference whites. sRGB and most screens use D65, daylight at about 6500 K. Lab in CSS, ICC profiles and print work with D50, so the same color has slightly different numbers.

Is my color uploaded?

No. The HEX code is converted in your browser, and no request is made with it.

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  • Files are processed on the employee's device
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How it works

Small tools that run in your browser.

What runs where

Your browser keeps the tools you use: the same kind of tools you would otherwise use on a website. Your files stay on your device and are not uploaded.

A tool your browser has kept also works without internet. Under Offline, at the bottom of this page, you can save everything at once, and the site keeps working without a connection.

Some tools have AI built in, for example to remove a background or enlarge a photo. Your browser downloads their AI models once, from ToolRecipe itself, and then runs them on your device. No tool sends your files to an online AI service or to us.

On a computer, these tools use the graphics chip when it passes a short check, because that is usually faster. On a phone they run on the processor, with settings that fit in a phone’s memory.

Using a tool

Give the tool your file, choose what you want, save the result.

  • Start on the home page

    Drop a file in the box on the home page, or try a sample photo. Pick what you want to do and press “Open tool”. The tool opens with your file in it.

  • Put a file in

    Drop it anywhere on the page, pick it with “Choose a file” or paste it. No file yet? Search for the job, like “heic to jpg”.

  • Choose the settings

    Each tool shows only the settings it needs. Often one click is enough.

  • Save the result

    Saved files go to your downloads. A copy also waits in Results.

  • Results

    The Results tab on the right edge keeps your latest results in this browser until you remove them. “Clear all” empties it.

Chaining tools

What one tool makes can go straight into the next, without saving it and opening it again.

  • “Use it in”

    Tap a result in Results and pick a tool under “Use it in”. The result is handed on to that tool.

  • Drag it

    You can also drag a result onto an open tool. On a phone, touch and hold it first.

  • From a chain to a recipe

    To run the same tools again later, make a recipe of them in the recipe builder.

The recipe builder

Drop a file in the box on the home page and add the steps one at a time. Nothing runs until you press “Run recipe” or “Open tool”.

  • Pick what to do

    The box shows a tile for each kind of job your file allows, such as “Make it smaller”. A tile opens its ready-made choices and every tool of that kind. “Back” returns to the tiles.

  • Add steps

    Each choice becomes a numbered step in the row at the top. “Add another step” shows suggested next steps, then the tiles for what the last step makes. The cross on a step removes it, and “Undo” brings it back.

  • Name it

    The recipe is called “My recipe” until you name it. Press the pen next to the name to change it.

  • Run it

    With one step, press “Open tool” and the tool opens with your file. With two or more steps, press “Run recipe”. The recipe opens on its own screen, and the steps run one after the other.

  • Steps that need you

    Most steps run by themselves. A step marked “Your turn” waits for you, for example when you need to sign a PDF. When you are done, press “Continue to next step”, or “See the result” on the last step.

  • Save or start over

    “Save the current steps as a recipe” keeps the steps under My recipes. You do not have to run them first. On the recipe screen, “Save this recipe” under the steps does the same. “Start over” clears the box for another file.

Recipes

A recipe is a few tools in a row: what one step makes goes into the next.

  • Ready-made recipes

    “All recipes” in the menu lists recipes for common jobs. Drop your file on one and it runs step by step.

  • Make your own

    Build one in the box on the home page. On My recipes, “New recipe” opens the same builder at the top of the page, with a search box for the tool you need next.

  • My recipes

    Your saved recipes are under “My recipes” in the menu, in this browser. Open one to rename it or change its steps. Changes are saved at once. “Start with a file” runs it on a new file. “Delete” asks you to confirm, then deletes it.

  • Share a recipe

    “Copy share link” makes a link to the steps, never to your files. Nothing starts for the person who opens it until they choose a file of their own.

Ways of working

Tools and recipes run in your browser, on your device.

  • Start from a file

    Drop it in the box on the home page and pick what you want to do. Choose one step to open its tool, or add more to make a recipe.

  • Start from a tool

    Search for the job or open a tool from the menu. When the result is ready, tap it in Results and pick the next tool under “Use it in”.

  • Keep the steps

    A saved recipe keeps its name, its tools in order and the setting of each step. It never keeps your files or their names.

  • Come back later

    Open My recipes in the same browser, on the same device, and run a recipe on a new file. A recipe stays there until you delete it or clear your browser data.

Finding tools again

Every tool and every recipe has its own address.

  • Bookmark it

    On a tool’s page, press Ctrl+D (⌘D on a Mac) to keep it in your browser’s bookmarks.

  • On your home screen

    A tool can sit on your phone’s home screen like an app. See Install, below, for how.

  • Your own recipes

    Recipes you saved are under “My recipes” in the menu.

  • The stars

    The stars under a new result ask how well the tool worked. Your answer helps us improve it. Stars do not save the tool for you.

Who uses what

Tool sets for common jobs.

Put a tool on your home screen

The icon opens that tool, like an app.

iPhone and iPad

  1. Open the tool in Safari
  2. Tap Share (the square with the arrow)
  3. Choose “Add to Home Screen”, then Add

Android

  1. Open the tool in Chrome
  2. Tap the menu (⋮) at the top right
  3. Choose “Add to Home screen” or “Install app”

Computer

  1. Open the tool in Chrome or Edge
  2. Click the install icon in the address bar
  3. Choose Install

Regarding updates

We try to do regular updates and post new tools.

How you can check that files stay here

Tools read your files and make the result in this browser, on your device. Your files are not uploaded to be processed.

A security policy lets this page contact one address only: our own server, for counts. It passes page views and a fixed list of actions on to an analytics service in the EU, which counts them for us. Neither gets your files or their names. Anything else is blocked, and the badge at the top turns red and counts it.

If a tool fails, the page counts that too: only the kind of error and where in our code it happened, never the error's text, your files or what you typed.

If you send us your email address to ask about ToolRecipe for companies, we store it with that request at our analytics service in the EU and receive it by mail, to answer you. Write to info@toolrecipe.com to have it deleted.

Results stay in this browser until you clear them.

Works offline

This site is saved on this device, so it opens without a connection. Big tools are saved the first time you use them.

Skills

Claude skills we use ourselves, one job each.