# imagecolorexact

(PHP 4, PHP 5)

imagecolorexact — Get the index of the specified color

### Description

int imagecolorexact ( resource `$image` , int `$red` , int `$green` , int `$blue` )

Returns the index of the specified color in the palette of the image.

If you created the image from a file, only colors used in the image are resolved. Colors present only in the pallete are not resolved.

### Parameters

`image`

  An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

`red`

  Value of red component

`green`

  Value of green component

`blue`

  Value of blue component

### Return Values

Returns the index of the specified color in the palette, or -1 if the color does not exist.

### See Also

- imagecolorclosest()