What are the standard Epic Colors that I can use in a search quiery

[Arjun]

I do not need any custom colors, but would like to know what are the standard epic colors that come by default in the JIRA Agile pallete. 

I am basically creating a custom quick filter to show issues of all the epics with a given color. 

So using something like

"Epic Color" is pink 

But does not seem to work. 

[Arjun]

From some browsing via google, I found that the colors are now named: ghx-label-1 to ghx-label-9. Can we get a mapping of what is for what color. And some suggestion of how I can use that in the query above.