ListContains() Function

I have a table with a column for listing colors.

The current comma delimited color list is: Orange & White, White

When adding a new color, I verify the color being added does not already exists. So I do a simple ListContains() function like this:

<CFSET v.vendorcolors = "Orange & White, White">

<CFSET imprintcolor = "Orange">

<CFIF ListContains(v.vendorcolors,imprintcolor,",")>

<CFSET message = "This color already exists.">

<CFELSE>

<CFSET form.vendorcolors = "#ListAppend(v.vendorcolors,imprintcolor)#">

</CFIF>

As you can see, if it doesn't exist in the list, then I APPEND it to the list.

Now, this was working great until I tried to add "ORANGE" as color.

You can see I have a "Orange & White" color options, but not just "Orange".

When I run this IF statement above, it says the list already contains the color "Orange". If I am telling it to use a comma as the delimiter, then why is it saying it exists?

Chuck