Call to all you one-liners !

[Francis Nugent Dixon]

Hi from Beautiful Brittany,

My rev coding has always been simple, though
certainly not efficient, and of course, I
can solve this little problem, but I have
great confidence in you guys out there to
give me a one-liner.

I have a field that I would like to check out.
It should contain any RGB value (like 255,100,099),
but it came though the clipboard, and so may
contain anything.

Can this check be done in one line ?

-Francis

"Nothing should ever be done for the first time !"