Can I somehow group swatches ?

Hey ,

So I have a lot of collor variation products, I need to simplify the Color filter to the basic color ie. White
other color variations : Purple White etc

I am trying to group them under White so when someone selects a filter shows only the Parent : White .

If I setup same color rgb under :
White : rgba white
Purple White : rgba white

It will overlap and show on the filter only 1 color ? that of the White ?

Thanks