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For companies

HEX to LCH

Convert HEX to LCH online, free: enter a hex code and get it as lch(), with lightness, chroma and hue. #7C3AED becomes lch(42.23% 98.71 305.25). LCH is CIE Lab in polar form, so you can make a color lighter or duller without its hue drifting the way it does in HSL. The conversion runs in your browser.

How to convert HEX to LCH

  1. 1Paste your hex code into "Color", such as #7C3AED
  2. 2Or pick the color with the color picker
  3. 3Copy the lch() value from the big line
  4. Lightness, chroma and hue, written as CSS lch()

Why LCH

  • Three numbers you can read.L is lightness, C is how colorful the color is, H is the hue angle from 0 to 360
  • Ready for CSS.The value is written as lch() with L in percent, the way stylesheets take it
  • Nothing is sent anywhere.Your browser works the numbers out on your own device

What you can do

  • Turn a hex code, three or six digits, with or without #, into lch() with two decimals
  • Compare LCH with OKLCH, which the same list shows: both have lightness, chroma and hue, on different scales
  • Copy the Lab value as well, the same color with a and b in place of chroma and hue
  • Paste rgb(), hsl() or a CSS color name instead of a hex code

Good to know

  • LCH here is CIE LCH with the D50 white, as CSS lch() uses it. It is not the same as OKLCH, although the letters match
  • Chroma has no fixed top. Vivid sRGB colors reach values above 100, while grays sit at 0
  • For a gray the hue has no meaning and is written as 0

Questions

How do I convert hex to LCH?

Type or paste the hex code into the field. The lch() value appears at once in the big line, and "Copy" takes it. #FFC61A, for example, is lch(83.33% 81.69 82).

What is the difference between LCH and HSL?

Both have a hue, but HSL lightness ignores how the eye sees colors: yellow and blue at the same HSL lightness look very different. LCH lightness follows the eye much more closely.

Should I use LCH or OKLCH in CSS?

Both work in current browsers. OKLCH keeps hues steadier when you change lightness, especially in blues, which is why many new color systems use it. The tool shows both, so you can copy either.

Is my color sent to a server?

No. The conversion happens in your browser. No request is made with your color.

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In offices, on building sites and in agencies, teams handle sensitive files all day. ToolRecipe gives everyone the same tools and the same recipes, and the files are processed on each person's own computer.

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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

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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.

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Skills

Claude skills we use ourselves, one job each.