# Documentation/Calc Functions/COLOR

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## Function name:

COLOR

## Category:

Mathematical

## Summary:

Combines specified values of the red, green, blue, and alpha channels of an RGBA color representation to produce a single encoded value.

## Syntax:

COLOR(**Red**; **Green**; **Blue**[; **Alpha**])

## Returns:

Returns an integer in the range [0, 2^{32}-1] that is the color value constructed from the specified components.

## Arguments:

**Red** is an integer in the range [0, 255], or a reference to a cell containing that number, that is the intensity of the red color.

**Green** is an integer in the range [0, 255], or a reference to a cell containing that number, that is the intensity of the green color.

**Blue** is an integer in the range [0, 255], or a reference to a cell containing that number, that is the intensity of the blue color.

**Alpha** is an integer in the range [0, 255], or a reference to a cell containing that number, that is the value for the alpha channel. If omitted, a default value of 0 is applied. A value of 0 means that the color is fully transparent, whereas a value of 255 gives a fully opaque color.

- If any argument is non-numeric, then COLOR reports a #VALUE! error.
- If any argument is a non-integer value, then COLOR converts it to an integer by taking its floor value.
- If any argument is less than 0 or greater than 255, then COLOR reports an invalid argument error (Err:502).

## Additional details:

- The value returned by COLOR has the alpha sample in its most significant 8 bits, followed by the red sample, green sample and finally the blue sample in the least significant 8 bits.
- COLOR combines the samples using the following formula:[math]\displaystyle{ \text{COLOR}(red, green, blue, alpha)~=~256*256*256*alpha~+~ 256*256*red~+~256*green~+~blue }[/math]
- 2
^{32}is equal to 4294967296.

## Examples:

Formula | Description | Returns |
---|---|---|

=COLOR(255; 255; 255; 255) | All components take their maximum values and COLOR returns the value 4294967295 (hex 0xFFFFFFFF). | 4294967295 |

=COLOR(D1; D2; D3; D4) where cells D1, D2, D3, and D4 all contain the number 119. | All components take the value 119 and COLOR returns the value 2004318071 (hex 0x77777777). | 2004318071 |

=COLOR(119.2; 119.7; 119.5; 119.9) | COLOR takes the floor value of each argument. After truncation, all components take the value 119 and COLOR returns the value 2004318071 (hex 0x77777777). | 2004318071 |

=COLOR(255; 255; 255) | Here no value for the alpha channel is specified and the default value of 0 is assumed. COLOR returns the value 16777215 (hex 0x00FFFFFF). | 16777215 |

=COLOR(11; 12; 13; 10) | This example is useful to confirm how the function constructs the coded value by viewing its structure in hexadecimal format. COLOR returns the value 168496141 (hex 0x0A0B0C0D). | 168496141 |

## Related LibreOffice functions:

None.

## ODF standard:

None.

## Related (or similar) Excel functions:

None.