RED Function

Returns the red component of a color.

Syntax

RED(expression )

Parameters

Name	Required/Optional	Data Type	Description
expression	Required	Varies	An index of a color in the document's color table, an expression that resolves to a custom color (like RGB or HSL), or a reference to a cell that contains a color index or color result.

Return value

Number

Remarks

The return value is a number in the range 0 to 255, inclusive, or a cell reference that resolves to an index. If expression is invalid, this function returns 0 (black).

Example 1

RED(22)

Returns 51 if the document uses the default Microsoft Office Visio color palette, where dark gray is the color at index 22.

Example 2

RED(Char.Color)

Returns the value of the red component of the current font color.

Example 3

RED(RGB(10, 20, 30))

Returns 10.