> ## Documentation Index
> Fetch the complete documentation index at: https://docs.liminaltattoo.es/llms.txt
> Use this file to discover all available pages before exploring further.

# Plan tattoo colours with Color Engine

> Work through Design, Skin, Execution, and Resolution, review your ink stock, and save artist-confirmed colour decisions.

Color Engine supports visual colour planning for an existing session. It can derive on-screen samples from the design, use an optional skin reference, and help you record choices based on the inks you actually have.

**1. Select a session**

Open Color Engine with a session containing a design. In **Diseño y objetivos**, inspect the image; a 3D view is also available when a saved placement exists.

**2. Prepare your targets**

Select **Reconocer colores** to propose samples from the image. Review each target's name, role, design area, and colour sample. You can sample a pixel directly or add a target.

**3. Optionally add a skin reference**

Upload a real reference photo, choose a representative area, and confirm it. Without an adequate reference, **Color Base** remains available.

**4. Review the execution target**

Compare the original design sample with its skin-context execution target. Any manual override should include your reason. The original design colour remains recorded.

**5. Resolve and save**

Consider **Directa** (direct), **Mezcla** (mix), or **Comprar** (buy), according to the evidence available. Record your decision and use **Guardar decisión de color**.

## Manage your ink collection

Use **Mi tinta** to declare which products are genuinely in your stock, set your region, and save preferences. Choosing a favourite brand does not automatically mark all its inks as available.

## Important distinctions

A **HEX** value is an on-screen RGB sample, not a physical pigment measurement. Camera-based skin context is an approximate visual reference, not calibrated colour science.

> [!WARNING]
>
> Color Engine does not guarantee a physical ink match, healed colour, clinical result, or legal suitability of a product.

Continue with [estimated mixes](https://docs.liminaltattoo.es/en/color/mixing.md).


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