Here is a little color palette inspiration for you! I decided to place colors on this quilt by temperature, so cool colors are at the North and South poles, and warm colors in warm parts of the world. I chose several shades of blue and turquoise, greens, orangey-reds, apricots, and magenta. I wanted all those colors to really stand out, so I kept the background white and binding black and white.
I think the orange and pinks work together here because I also included those apricot prints-- since apricot is a combo of pink and orange, it creates a subtle transition.
Find more color palette ideas, here.
You can find the map pattern in my book, Scrappy Bits Applique.