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Hair colour card

Turn colour products and notes into a colour card. The server calculates the mixing ratio and amounts from the products entered, and nothing is said on skin.

Input

Client: Customer card 1184 Salon: Studio Lindenau Date: 12 May 2026 Products: id,product,shade,parts,amount F1,Lumina Cream,7.1,1, F2,Lumina Cream,6.0,1, F3,Lumina Developer 6 %,,2, Total amount: 120 Unit: g Notes on the application: Roo…

Result

A table with product, shade, ratio, amount and share, the total, the order of application and remarks, also as text and Word.

A colour card has to be right the next time too. This tool calculates the amount of each product from parts and a total, or the ratio from the amounts weighed. It uses only the products entered and reports figures that do not fit together. The AI words the order of application from the notes. It says nothing on allergies or skin compatibility.

Your texts, pages and images are processed on our own servers in the EU. Trust Center

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Who it is for

Hair salons and mobile hairdressers who keep colour cards for their clients.

Typical uses

  • Record a colour mix for the next visit.
  • Split a total amount by a mixing ratio.
  • Check whether weighed amounts fit the planned ratio.

Example

Input

Client: Customer card 1184 Salon: Studio Lindenau Date: 12 May 2026 Products: id,product,shade,parts,amount F1,Lumina Cream,7.1,1, F2,Lumina Cream,6.0,1, F3,Lumina Developer 6 %,,2, Total amount: 120 Unit: g Notes on the application: Roots first, leave for 30 minutes, then the lengths for the last 10 minutes. The client wants a cool tone without red.

Result

A table with product, shade, ratio, amount and share, the total, the order of application and remarks, also as text and Word.

A fixed example, shortened. Real results are AI-generated: please check them.

Price and limits

Price
usually 1–3 credits
Available with
Free, With package
Input limit
One page with up to 30,000 characters of HTML

Privacy

Processed on our own servers in the EU (Poland). Inputs and results are deleted after 7 days (Free) or 30 days (packages), or right after you see the result if you choose not to store them. Images are deleted right after processing.

In the API

Tool name: hair_colour_card. Create a job with POST /api/v1/jobs and fetch the result with GET /api/v1/jobs/{id}. You find your API key in your account.

curl -X POST https://do4u.eu/api/v1/jobs \
  -H "Authorization: Bearer d4u_…" -H "Content-Type: application/json" \
  -d '{"tool": "hair_colour_card", "url": "https://example.com/"}'

Full API documentation →

Questions and answers

Who does the calculation?

The server calculates all sums from the table. The AI only writes the text and cannot change the figures.

Can the tool add a product?

No. The table contains only what was entered, and product names not found in the input are reported.

Does the card say whether a colour is safe for the skin?

No. Sentences on skin, allergies or tests are removed. These checks stay with the salon and the instructions of the manufacturer.

Is my text stored?

Only as long as needed: 7 days on Free, 30 days with a package – or not at all if you choose not to store it. Processing happens on our own servers in the EU (Poland).

Can I use the result right away?

Results are AI-generated. Please read them before you publish or send them.