I love color combos that reflect a certain, historical era such as:
1970s - avocado green/harvest gold
1960s - bright neon green/purple
1950s - pink/black
1930s - tomato red/aqua
1920s - dusty pink/mint green
1910s - red/blue
1900s - red/white
1890s - muted browns/dark blues
~ Cindy