Applying quality Chroma Key effects begins with selecting the color and tone of your background.  Color is followed closely in importance by lighting the background and the subject separately.  Buying specially formulated paint is expensive when your local paint store can often supply a quality option. 

Give these Pantone codes to your store “mixologist” and enjoy the results.

Green screen: PANTONE 354 =

C: 95%

M: 0%

Y: 100%

K: 0%

Blue Screen: PANTONE 2735 =

C: 99%

M: 100%

Y: 6%

K: 7%

For more information, check out: http://blogs.techsmith.com/tips-how-tos/how-to-create-a-diy-green-scre

http://www.datavideo.us/datavideo-product-families/datavideo-chromakey/getting-optimum-chromakey-results/

https://www.udemy.com/blog/how-to-use-a-green-screen/