Orange/yellow I believe.
No color will mix with green to get blue. Blue is a primary color when mixed with another primary color, yellow, produces green.
muddy green
Yellow, a primary color, mixed with blue, another primary color, makes green.
I would Say mixed blue and green
Yellow is a primary color and green is a secondary color. When these two are mixed you will get a tertiary color which is yellow-green or light green.
light green :) :p
Blue green
Gold mixed with blue makes green and blue mixed with gold also makes green.
teal
green
blue
Red and Green being opposite each other on the color wheel, you should get a grey color if proper amounts of each color are mixed together.