hex_to_rgba

plotly.shared.hex_to_rgba(hex_color: str, opacity: float | None = None)

Convert hex color code to RGBA string format.

Converts a hexadecimal color string (with or without ‘#’ prefix) to an RGBA formatted string. Supports both shorthand (#ddd) and full (#888888) hex notation.

Parameters

Name	Type	Description	Default
hex_color	str	Hexadecimal color string. Accepts formats: ‘#rrggbb’, ‘rrggbb’, ‘#rgb’, or ‘rgb’ where r, g, b are hex digits.	required
opacity	float or None	Opacity value between 0.0 (transparent) and 1.0 (opaque). If None, defaults to 1.0.	`None`

Returns

Name	Type	Description
	str	RGBA formatted string in the form ‘rgba(r, g, b, a)’ where r, g, b are integers 0-255 and a is the opacity.

Examples

>>> hex_to_rgba('#ff0000', opacity=1.0)
'rgba(255, 0, 0, 1.0)'
>>> hex_to_rgba('#ddd', opacity=0.7)
'rgba(221, 221, 221, 0.7)'
>>> hex_to_rgba('888888', opacity=0.5)
'rgba(136, 136, 136, 0.5)'
>>> hex_to_rgba('#00ff00')
'rgba(0, 255, 0, 1.0)'

Notes

Shorthand hex notation (e.g., ‘#ddd’) is automatically expanded to full notation (‘#dddddd’) before conversion.

# hex_to_rgba { #mdu.plotly.shared.hex_to_rgba }

```python
plotly.shared.hex_to_rgba(hex_color: str, opacity: float | None = None)
```

Convert hex color code to RGBA string format.

Converts a hexadecimal color string (with or without '#' prefix) to an
RGBA formatted string. Supports both shorthand (#ddd) and full (#888888)
hex notation.

## Parameters {.doc-section .doc-section-parameters}

| Name      | Type          | Description                                                                                                    | Default    |
|-----------|---------------|----------------------------------------------------------------------------------------------------------------|------------|
| hex_color | str           | Hexadecimal color string. Accepts formats: '#rrggbb', 'rrggbb', '#rgb', or 'rgb' where r, g, b are hex digits. | _required_ |
| opacity   | float or None | Opacity value between 0.0 (transparent) and 1.0 (opaque). If None, defaults to 1.0.                            | `None`     |

## Returns {.doc-section .doc-section-returns}

| Name   | Type   | Description                                                                                                 |
|--------|--------|-------------------------------------------------------------------------------------------------------------|
|        | str    | RGBA formatted string in the form 'rgba(r, g, b, a)' where r, g, b are integers 0-255 and a is the opacity. |

## Examples {.doc-section .doc-section-examples}

```python
>>> hex_to_rgba('#ff0000', opacity=1.0)
'rgba(255, 0, 0, 1.0)'
>>> hex_to_rgba('#ddd', opacity=0.7)
'rgba(221, 221, 221, 0.7)'
>>> hex_to_rgba('888888', opacity=0.5)
'rgba(136, 136, 136, 0.5)'
>>> hex_to_rgba('#00ff00')
'rgba(0, 255, 0, 1.0)'
```

## Notes {.doc-section .doc-section-notes}

Shorthand hex notation (e.g., '#ddd') is automatically expanded to full
notation ('#dddddd') before conversion.