Some pictures including your counter, backsplash and floor would help.

I would google popular Sherein Williams/Benjamin Moore light green paint. Also google top selling sage green paint colors.

There are also lovely green/ grays.

Confused. Are you painting the cabinets to pair with the existing green countertops?

Where are the photos of your kitchen? My best guess would be to paint the walls green.

There are many wood stains for cabinets and many dark green countertops.

Another choice would be blue walls. But, again, it depends on the wood stain and the countertop color.