BLUE Function
Returns the blue component of a color. The return value is an integer in the range of 0 to 255, inclusive. The function returns 0 for invalid input.
Syntax
BLUE(expression )
Parameters
| Name | Required/Optional | Data Type | Description |
|---|---|---|---|
| expression |
Required |
String |
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
Integer
Example 1
BLUE(Sheet.4!FillForegnd)
Returns the blue component of Sheet.4's fill foreground color.
Example 2
BLUE(13)
Returns 128 if the document uses the default Visio color palette, where cyan is the color at index 13.
Example 3
BLUE(RGB(10, 20, 30))
Returns 30.