---
title: "toHex"
description: "Returns a hex formatted string representing the unsigned integer argument."
---

# toHex

> Returns a hex formatted string representing the unsigned integer argument.

**This function is used by Ignition's Expression language.**

## Description
Returns a hex formatted string representing the unsigned integer argument. If the argument is negative, the hex string represents the value plus 2<sup>32</sup>.

## Syntax
`toHex(number)`

### Parameters

| Type | Parameter | Description |
|---|---|---|
| Integer | `number` | The number to convert to hex. |

### Results
**String** - A string that is the hex value of the specified value.

  

`toHex(color)`

### Parameters

| Type | Parameter | Description |
|---|---|---|
| Color | `color` | An RGBA set to convert to hex. |

### Results
**String** - A string that is the hex value of the specified value.

## Examples
```python title="Code Snippet"
toHex(255) //returns "FF"
```
```python title="Code Snippet"
toHex(-255)  //returns "FFFFFF01"
```
```python title="Code Snippet"
toHex(color(192,26,68,241))   //Returns "C01A44F1"
```