> For the complete documentation index, see [llms.txt](https://doc.open-tx.org/opentx-2-3-lua-reference-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.open-tx.org/opentx-2-3-lua-reference-guide/part_iii_-_opentx_lua_api_reference/general-functions-less-than-greater-than-luadoc-begin-general/grey.md).

# GREY()

Returns gray value which can be used in LCD functions

@status current Introduced in 2.0.13

## Parameters

none

## Return value

* `(number)` a value that represents amount of *greyness* (from 0 to 15)

### Notice

Only available on Taranis