Brown
The colors blue and yellow combine to make the color green.
dark green and white or yellow and blue
green and gray
white and green
Green and bue
The two colors are blue and green.
Blue and yellow make the color green.
Blue and yellow are mixed to make green.
The Christmas trees are green.
Green
Green and white.
If you start with 2 colors you can make many hues of one color from them. For example, blue and yellow can only make different hues of green. But you can differentiate yellow-green anf blue-green from them.