Ok so you want a more authentic looking mid-century modern design.  So what to do besides select from our many furniture pieces at http://www.ezmodfurniture.com/furniture/modern-classic.html.  How do you really know which colors are the most authentic of the period?  What if you want to select poster art of the time period.  The answer is simple. All you have to do is google it.  Yes google is good for a lot of information.  Just go to an image search and google mid-century modern art to get an idea of the art work of the time.  If you want less expensive poster art just include mid-centruy modern art posters.  Then you will find many sources of where you can find these type of posters.  Two of them are listed here.  The websites are

http://www.zazzle.com/mid+century+modern+posters

 

jpprintparlor.com

 

First I found some original paint chip schemes of the period. 

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 For your enjoyment I am posting a few of the images that I caught my eye.  When you click on the picture it will list at the bottom where the image originated from.             

  

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I hope you've enjoyed these images as much as I have.  They are fun to look at, as art generally is.