Yep, you've got a good eye. It's RGB.
Although, scart isn't the greatest connector. Sometimes I have to fuss with it.
At some point I'll make some custom cables from each console to the monitor.
Since you've already got the component cables, why not get a CRT television?
I've got a circa 2005 13" Sony Trinitron (not pictured) consumer television that accepts component and looks killer.
It even looks pretty decent through composite.
You can get them for almost nothing. Paid $9 for mine, nearly new.