> For the complete documentation index, see [llms.txt](https://docs.saas.haut.ai/haut.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.saas.haut.ai/haut.ai/developers/saas-api-overview/api-for-hair-metrics-2.0/color.md).
# Color
Result scheme for the hair Color metric in Hair Metrics 2.0: the area, main metric, sub-metric, and mask fields it returns.
## **Description**
This metric describes the hair’s color. All natural hair colors are determined by the presence of two pigments: eumelanin and pheomelanin. Generally, the more eumelanin is present, the darker the hair color; if less eumelanin is present, the hair color is lighter. Pheomelanin is responsible for giving the hair a red hue.
**`"algorithm_tech_name": "color"`**
## `area_name`
The algorithm returns metrics for the following area:
* `hair`
## `main_metric`
The main metric indicates the hair color category for `area_name`
```javascript
"main_metric": {
"value": "Brown",
"widget_type": "category",
"name": "Color",
"tech_name": "color",
"widget_meta": null
},
```
* **`value`** The hair color is divided into six classes, as listed below. Each category gets its own confidence level in the range of `[0,100]`, where the highest score indicates the hair color class:
* `Brown`
* `Blond`
* `Black`
* `Red`
* `Gray or White`
* `Other`
* `"widget_type": "category"`
* `"name": "Color"`
* `"tech_name": "color"`
## `sub_metrics`
The algorithm returns six types of sub-metrics: `Black Color Confidence`,`Brown Color Confidence`, `Blond Color Confidence`, `Gray or White Color Confidence`, `Red Color Confidence` and `Other Color Confidence`.
```javascript
"sub_metrics": [
{
"value": 0,
"widget_type": "numeric",
"name": "Black Color Confidence",
"tech_name": "black_color_confidence",
"widget_meta": null
},
{
"value": 83,
"widget_type": "numeric",
"name": "Brown Color Confidence",
"tech_name": "brown_color_confidence",
"widget_meta": null
},
{
"value": 1,
"widget_type": "numeric",
"name": "Blond Color Confidence",
"tech_name": "blond_color_confidence",
"widget_meta": null
},
{
"value": 0,
"widget_type": "numeric",
"name": "Gray or White Color Confidence",
"tech_name": "gray or white_color_confidence",
"widget_meta": null
},
{
"value": 33,
"widget_type": "numeric",
"name": "Red Color Confidence",
"tech_name": "red_color_confidence",
"widget_meta": null
},
{
"value": 0,
"widget_type": "numeric",
"name": "Other Color Confidence",
"tech_name": "other_color_confidence",
"widget_meta": null
}
]
```
* **`Black Color Confidence`** evaluates black color's confidence level
* **`value`** of the black color confidence level ranges from `[0,100]`*. A higher score is associated with a higher chance of the hair being black in color*
* `"widget_type": "numeric"`
* `"name": "Black Color Confidence"`
* `"tech_name": "black_color_confidence"`
* **`Brown Color Confidence`** evaluates brown color's confidence level
* **`value`** of the brown color confidence level ranges from `[0,100]`*. A higher score is associated with a higher chance of the hair being brown in color*
* `"widget_type": "numeric"`
* `"name": "Brown Color Confidence"`
* `"tech_name": "brown_color_confidence"`
* **`Blond Color Confidence`** evaluates blond color's confidence level
* **`value`** of the blond color confidence level ranges from `[0,100]`*. A higher score is associated with a higher chance of the hair being blond in color*
* `"widget_type": "numeric"`
* `"name": "Blond Color Confidence"`
* `"tech_name": "blond_color_confidence"`
* **`Gray or White Color Confidence`** evaluates gray color confidence level
* **`value`** of the gray and white color confidence level ranges from `[0,100]`*. A higher score is associated with a higher chance of the hair being gray or white in color*
* `"widget_type": "numeric"`
* `"name": "Gray or White Color Confidence"`
* `"tech_name": "gray or white_color_confidence"`
* **`Red Color Confidence`** evaluates red color's confidence level
* **`value`** of the red color confidence level ranges from `[0,100]`*. A higher score is associated with a higher chance of the hair being red in color*
* `"widget_type": "numeric"`
* `"name": "Red Color Confidence"`
* `"tech_name": "red_color_confidence"`
* **`Other Color Confidence`** evaluates other colors' confidence level
* **`value`** of the "other" color confidence level ranges from `[0,100]`*. A higher score is associated with a higher chance of the hair being "other" in color*
* `"widget_type": "numeric"`
* `"name": "Other Color Confidence"`
* `"tech_name": "other_color_confidence"`
## `masks_restored`
**None** **-** there are no restored masks for hair color
## `masks_original`
**None -** there are no original masks for hair color
***
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